281896020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1091

約数の個数: 216

約数和(自身を含む): 1027772928

約数和(自身を除く): 745876908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 735, 868, 882, 930, 980, 1031, 1085, 1116, 1260, 1302, 1395, 1470, 1519, 1764, 1860, 1953, 2062, 2170, 2205, 2604, 2790, 2940, 3038, 3093, 3255, 3906, 4124, 4340, 4410, 4557, 5155, 5580, 6076, 6186, 6510, 7217, 7595, 7812, 8820, 9114, 9279, 9765, 10310, 12372, 13020, 13671, 14434, 15190, 15465, 18228, 18558, 19530, 20620, 21651, 22785, 27342, 28868, 30380, 30930, 31961, 36085, 37116, 39060, 43302, 45570, 46395, 50519, 54684, 61860, 63922, 64953, 68355, 72170, 86604, 91140, 92790, 95883, 101038, 108255, 127844, 129906, 136710, 144340, 151557, 159805, 185580, 191766, 202076, 216510, 223727, 252595, 259812, 273420, 287649, 303114, 319610, 324765, 383532, 433020, 447454, 454671, 479415, 505190, 575298, 606228, 639220, 649530, 671181, 757785, 894908, 909342, 958830, 1010380, 1118635, 1150596, 1299060, 1342362, 1438245, 1515570, 1566089, 1818684, 1917660, 2013543, 2237270, 2273355, 2684724, 2876490, 3031140, 3132178, 3355905, 4027086, 4474540, 4546710, 4698267, 5752980, 6264356, 6711810, 7830445, 8054172, 9093420, 9396534, 10067715, 13423620, 14094801, 15660890, 18793068, 20135430, 23491335, 28189602, 31321780, 40270860, 46982670, 56379204, 70474005, 93965340, 140948010, 281896020]

約数ペア:

[(1, 281896020), (2, 140948010), (3, 93965340), (4, 70474005), (5, 56379204), (6, 46982670), (7, 40270860), (9, 31321780), (10, 28189602), (12, 23491335), (14, 20135430), (15, 18793068), (18, 15660890), (20, 14094801), (21, 13423620), (28, 10067715), (30, 9396534), (31, 9093420), (35, 8054172), (36, 7830445), (42, 6711810), (45, 6264356), (49, 5752980), (60, 4698267), (62, 4546710), (63, 4474540), (70, 4027086), (84, 3355905), (90, 3132178), (93, 3031140), (98, 2876490), (105, 2684724), (124, 2273355), (126, 2237270), (140, 2013543), (147, 1917660), (155, 1818684), (180, 1566089), (186, 1515570), (196, 1438245), (210, 1342362), (217, 1299060), (245, 1150596), (252, 1118635), (279, 1010380), (294, 958830), (310, 909342), (315, 894908), (372, 757785), (420, 671181), (434, 649530), (441, 639220), (465, 606228), (490, 575298), (558, 505190), (588, 479415), (620, 454671), (630, 447454), (651, 433020), (735, 383532), (868, 324765), (882, 319610), (930, 303114), (980, 287649), (1031, 273420), (1085, 259812), (1116, 252595), (1260, 223727), (1302, 216510), (1395, 202076), (1470, 191766), (1519, 185580), (1764, 159805), (1860, 151557), (1953, 144340), (2062, 136710), (2170, 129906), (2205, 127844), (2604, 108255), (2790, 101038), (2940, 95883), (3038, 92790), (3093, 91140), (3255, 86604), (3906, 72170), (4124, 68355), (4340, 64953), (4410, 63922), (4557, 61860), (5155, 54684), (5580, 50519), (6076, 46395), (6186, 45570), (6510, 43302), (7217, 39060), (7595, 37116), (7812, 36085), (8820, 31961), (9114, 30930), (9279, 30380), (9765, 28868), (10310, 27342), (12372, 22785), (13020, 21651), (13671, 20620), (14434, 19530), (15190, 18558), (15465, 18228)]