161225640

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:148

約数の個数: 256

約数和(自身を含む): 578592000

約数和(自身を除く): 417366360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 97, 108, 114, 120, 135, 152, 162, 171, 180, 190, 194, 216, 228, 243, 270, 285, 291, 324, 342, 360, 380, 388, 405, 456, 485, 486, 513, 540, 570, 582, 648, 684, 729, 760, 776, 810, 855, 873, 970, 972, 1026, 1080, 1140, 1164, 1215, 1368, 1455, 1458, 1539, 1620, 1710, 1746, 1843, 1940, 1944, 2052, 2187, 2280, 2328, 2430, 2565, 2619, 2910, 2916, 3078, 3240, 3420, 3492, 3645, 3686, 3880, 4104, 4365, 4374, 4617, 4860, 5130, 5238, 5529, 5820, 5832, 6156, 6840, 6984, 7290, 7372, 7695, 7857, 8730, 8748, 9215, 9234, 9720, 10260, 10476, 10935, 11058, 11640, 12312, 13095, 13851, 14580, 14744, 15390, 15714, 16587, 17460, 17496, 18430, 18468, 20520, 20952, 21870, 22116, 23085, 23571, 26190, 27645, 27702, 29160, 30780, 31428, 33174, 34920, 36860, 36936, 39285, 41553, 43740, 44232, 46170, 47142, 49761, 52380, 55290, 55404, 61560, 62856, 66348, 69255, 70713, 73720, 78570, 82935, 83106, 87480, 92340, 94284, 99522, 104760, 110580, 110808, 117855, 132696, 138510, 141426, 149283, 157140, 165870, 166212, 184680, 188568, 199044, 207765, 212139, 221160, 235710, 248805, 277020, 282852, 298566, 314280, 331740, 332424, 353565, 398088, 415530, 424278, 447849, 471420, 497610, 554040, 565704, 597132, 663480, 707130, 746415, 831060, 848556, 895698, 942840, 995220, 1060695, 1194264, 1343547, 1414260, 1492830, 1662120, 1697112, 1791396, 1990440, 2121390, 2239245, 2687094, 2828520, 2985660, 3582792, 4030641, 4242780, 4478490, 5374188, 5971320, 6717735, 8061282, 8485560, 8956980, 10748376, 13435470, 16122564, 17913960, 20153205, 26870940, 32245128, 40306410, 53741880, 80612820, 161225640]

約数ペア:

[(1, 161225640), (2, 80612820), (3, 53741880), (4, 40306410), (5, 32245128), (6, 26870940), (8, 20153205), (9, 17913960), (10, 16122564), (12, 13435470), (15, 10748376), (18, 8956980), (19, 8485560), (20, 8061282), (24, 6717735), (27, 5971320), (30, 5374188), (36, 4478490), (38, 4242780), (40, 4030641), (45, 3582792), (54, 2985660), (57, 2828520), (60, 2687094), (72, 2239245), (76, 2121390), (81, 1990440), (90, 1791396), (95, 1697112), (97, 1662120), (108, 1492830), (114, 1414260), (120, 1343547), (135, 1194264), (152, 1060695), (162, 995220), (171, 942840), (180, 895698), (190, 848556), (194, 831060), (216, 746415), (228, 707130), (243, 663480), (270, 597132), (285, 565704), (291, 554040), (324, 497610), (342, 471420), (360, 447849), (380, 424278), (388, 415530), (405, 398088), (456, 353565), (485, 332424), (486, 331740), (513, 314280), (540, 298566), (570, 282852), (582, 277020), (648, 248805), (684, 235710), (729, 221160), (760, 212139), (776, 207765), (810, 199044), (855, 188568), (873, 184680), (970, 166212), (972, 165870), (1026, 157140), (1080, 149283), (1140, 141426), (1164, 138510), (1215, 132696), (1368, 117855), (1455, 110808), (1458, 110580), (1539, 104760), (1620, 99522), (1710, 94284), (1746, 92340), (1843, 87480), (1940, 83106), (1944, 82935), (2052, 78570), (2187, 73720), (2280, 70713), (2328, 69255), (2430, 66348), (2565, 62856), (2619, 61560), (2910, 55404), (2916, 55290), (3078, 52380), (3240, 49761), (3420, 47142), (3492, 46170), (3645, 44232), (3686, 43740), (3880, 41553), (4104, 39285), (4365, 36936), (4374, 36860), (4617, 34920), (4860, 33174), (5130, 31428), (5238, 30780), (5529, 29160), (5820, 27702), (5832, 27645), (6156, 26190), (6840, 23571), (6984, 23085), (7290, 22116), (7372, 21870), (7695, 20952), (7857, 20520), (8730, 18468), (8748, 18430), (9215, 17496), (9234, 17460), (9720, 16587), (10260, 15714), (10476, 15390), (10935, 14744), (11058, 14580), (11640, 13851), (12312, 13095)]