1981201320

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{3623}}^1$

素因数の和:3685

約数の個数: 288

約数和(自身を含む): 7733905920

約数和(自身を除く): 5752704600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 49, 56, 60, 62, 63, 70, 72, 84, 90, 93, 98, 105, 120, 124, 126, 140, 147, 155, 168, 180, 186, 196, 210, 217, 245, 248, 252, 279, 280, 294, 310, 315, 360, 372, 392, 420, 434, 441, 465, 490, 504, 558, 588, 620, 630, 651, 735, 744, 840, 868, 882, 930, 980, 1085, 1116, 1176, 1240, 1260, 1302, 1395, 1470, 1519, 1736, 1764, 1860, 1953, 1960, 2170, 2205, 2232, 2520, 2604, 2790, 2940, 3038, 3255, 3528, 3623, 3720, 3906, 4340, 4410, 4557, 5208, 5580, 5880, 6076, 6510, 7246, 7595, 7812, 8680, 8820, 9114, 9765, 10869, 11160, 12152, 13020, 13671, 14492, 15190, 15624, 17640, 18115, 18228, 19530, 21738, 22785, 25361, 26040, 27342, 28984, 30380, 32607, 36230, 36456, 39060, 43476, 45570, 50722, 54345, 54684, 60760, 65214, 68355, 72460, 76083, 78120, 86952, 91140, 101444, 108690, 109368, 112313, 126805, 130428, 136710, 144920, 152166, 163035, 177527, 182280, 202888, 217380, 224626, 228249, 253610, 260856, 273420, 304332, 326070, 336939, 355054, 380415, 434760, 449252, 456498, 507220, 532581, 546840, 561565, 608664, 652140, 673878, 710108, 760830, 786191, 887635, 898504, 912996, 1010817, 1014440, 1065162, 1123130, 1141245, 1304280, 1347756, 1420216, 1521660, 1572382, 1597743, 1684695, 1775270, 1825992, 2021634, 2130324, 2246260, 2282490, 2358573, 2662905, 2695512, 3043320, 3144764, 3195486, 3369390, 3550540, 3930955, 4043268, 4260648, 4492520, 4564980, 4717146, 5054085, 5325810, 5503337, 6289528, 6390972, 6738780, 7075719, 7101080, 7861910, 7988715, 8086536, 9129960, 9434292, 10108170, 10651620, 11006674, 11792865, 12781944, 13477560, 14151438, 15723820, 15977430, 16510011, 18868584, 20216340, 21303240, 22013348, 23585730, 27516685, 28302876, 31447640, 31954860, 33020022, 35378595, 40432680, 44026696, 47171460, 49530033, 55033370, 56605752, 63909720, 66040044, 70757190, 82550055, 94342920, 99060066, 110066740, 132080088, 141514380, 165100110, 198120132, 220133480, 247650165, 283028760, 330200220, 396240264, 495300330, 660400440, 990600660, 1981201320]

約数ペア:

[(1, 1981201320), (2, 990600660), (3, 660400440), (4, 495300330), (5, 396240264), (6, 330200220), (7, 283028760), (8, 247650165), (9, 220133480), (10, 198120132), (12, 165100110), (14, 141514380), (15, 132080088), (18, 110066740), (20, 99060066), (21, 94342920), (24, 82550055), (28, 70757190), (30, 66040044), (31, 63909720), (35, 56605752), (36, 55033370), (40, 49530033), (42, 47171460), (45, 44026696), (49, 40432680), (56, 35378595), (60, 33020022), (62, 31954860), (63, 31447640), (70, 28302876), (72, 27516685), (84, 23585730), (90, 22013348), (93, 21303240), (98, 20216340), (105, 18868584), (120, 16510011), (124, 15977430), (126, 15723820), (140, 14151438), (147, 13477560), (155, 12781944), (168, 11792865), (180, 11006674), (186, 10651620), (196, 10108170), (210, 9434292), (217, 9129960), (245, 8086536), (248, 7988715), (252, 7861910), (279, 7101080), (280, 7075719), (294, 6738780), (310, 6390972), (315, 6289528), (360, 5503337), (372, 5325810), (392, 5054085), (420, 4717146), (434, 4564980), (441, 4492520), (465, 4260648), (490, 4043268), (504, 3930955), (558, 3550540), (588, 3369390), (620, 3195486), (630, 3144764), (651, 3043320), (735, 2695512), (744, 2662905), (840, 2358573), (868, 2282490), (882, 2246260), (930, 2130324), (980, 2021634), (1085, 1825992), (1116, 1775270), (1176, 1684695), (1240, 1597743), (1260, 1572382), (1302, 1521660), (1395, 1420216), (1470, 1347756), (1519, 1304280), (1736, 1141245), (1764, 1123130), (1860, 1065162), (1953, 1014440), (1960, 1010817), (2170, 912996), (2205, 898504), (2232, 887635), (2520, 786191), (2604, 760830), (2790, 710108), (2940, 673878), (3038, 652140), (3255, 608664), (3528, 561565), (3623, 546840), (3720, 532581), (3906, 507220), (4340, 456498), (4410, 449252), (4557, 434760), (5208, 380415), (5580, 355054), (5880, 336939), (6076, 326070), (6510, 304332), (7246, 273420), (7595, 260856), (7812, 253610), (8680, 228249), (8820, 224626), (9114, 217380), (9765, 202888), (10869, 182280), (11160, 177527), (12152, 163035), (13020, 152166), (13671, 144920), (14492, 136710), (15190, 130428), (15624, 126805), (17640, 112313), (18115, 109368), (18228, 108690), (19530, 101444), (21738, 91140), (22785, 86952), (25361, 78120), (26040, 76083), (27342, 72460), (28984, 68355), (30380, 65214), (32607, 60760), (36230, 54684), (36456, 54345), (39060, 50722), (43476, 45570)]