80541720

素因数分解:

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

素因数の和:1086

約数の個数: 192

約数和(自身を含む): 309104640

約数和(自身を除く): 228562920

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, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1031, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2062, 2170, 2232, 2520, 2604, 2790, 3093, 3255, 3720, 3906, 4124, 4340, 5155, 5208, 5580, 6186, 6510, 7217, 7812, 8248, 8680, 9279, 9765, 10310, 11160, 12372, 13020, 14434, 15465, 15624, 18558, 19530, 20620, 21651, 24744, 26040, 28868, 30930, 31961, 36085, 37116, 39060, 41240, 43302, 46395, 57736, 61860, 63922, 64953, 72170, 74232, 78120, 86604, 92790, 95883, 108255, 123720, 127844, 129906, 144340, 159805, 173208, 185580, 191766, 216510, 223727, 255688, 259812, 287649, 288680, 319610, 324765, 371160, 383532, 433020, 447454, 479415, 519624, 575298, 639220, 649530, 671181, 767064, 866040, 894908, 958830, 1118635, 1150596, 1278440, 1299060, 1342362, 1438245, 1789816, 1917660, 2013543, 2237270, 2301192, 2598120, 2684724, 2876490, 3355905, 3835320, 4027086, 4474540, 5369448, 5752980, 6711810, 8054172, 8949080, 10067715, 11505960, 13423620, 16108344, 20135430, 26847240, 40270860, 80541720]

約数ペア:

[(1, 80541720), (2, 40270860), (3, 26847240), (4, 20135430), (5, 16108344), (6, 13423620), (7, 11505960), (8, 10067715), (9, 8949080), (10, 8054172), (12, 6711810), (14, 5752980), (15, 5369448), (18, 4474540), (20, 4027086), (21, 3835320), (24, 3355905), (28, 2876490), (30, 2684724), (31, 2598120), (35, 2301192), (36, 2237270), (40, 2013543), (42, 1917660), (45, 1789816), (56, 1438245), (60, 1342362), (62, 1299060), (63, 1278440), (70, 1150596), (72, 1118635), (84, 958830), (90, 894908), (93, 866040), (105, 767064), (120, 671181), (124, 649530), (126, 639220), (140, 575298), (155, 519624), (168, 479415), (180, 447454), (186, 433020), (210, 383532), (217, 371160), (248, 324765), (252, 319610), (279, 288680), (280, 287649), (310, 259812), (315, 255688), (360, 223727), (372, 216510), (420, 191766), (434, 185580), (465, 173208), (504, 159805), (558, 144340), (620, 129906), (630, 127844), (651, 123720), (744, 108255), (840, 95883), (868, 92790), (930, 86604), (1031, 78120), (1085, 74232), (1116, 72170), (1240, 64953), (1260, 63922), (1302, 61860), (1395, 57736), (1736, 46395), (1860, 43302), (1953, 41240), (2062, 39060), (2170, 37116), (2232, 36085), (2520, 31961), (2604, 30930), (2790, 28868), (3093, 26040), (3255, 24744), (3720, 21651), (3906, 20620), (4124, 19530), (4340, 18558), (5155, 15624), (5208, 15465), (5580, 14434), (6186, 13020), (6510, 12372), (7217, 11160), (7812, 10310), (8248, 9765), (8680, 9279)]