20284412960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1\times {\mathrm{809}}^1$

素因数の和:1259

約数の個数: 192

約数和(自身を含む): 55886423040

約数和(自身を除く): 35602010080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 367, 427, 488, 560, 610, 734, 809, 854, 976, 1120, 1220, 1468, 1618, 1708, 1835, 1952, 2135, 2440, 2569, 2936, 3236, 3416, 3670, 4045, 4270, 4880, 5138, 5663, 5872, 6472, 6832, 7340, 8090, 8540, 9760, 10276, 11326, 11744, 12845, 12944, 13664, 14680, 16180, 17080, 20552, 22387, 22652, 25690, 25888, 28315, 29360, 32360, 34160, 41104, 44774, 45304, 49349, 51380, 56630, 58720, 64720, 68320, 82208, 89548, 90608, 98698, 102760, 111935, 113260, 129440, 156709, 179096, 181216, 197396, 205520, 223870, 226520, 246745, 296903, 313418, 345443, 358192, 394792, 411040, 447740, 453040, 493490, 593806, 626836, 690886, 716384, 783545, 789584, 895480, 906080, 986980, 1187612, 1253672, 1381772, 1484515, 1567090, 1579168, 1727215, 1790960, 1973960, 2078321, 2375224, 2507344, 2763544, 2969030, 3134180, 3454430, 3581920, 3947920, 4156642, 4750448, 5014688, 5527088, 5938060, 6268360, 6908860, 7895840, 8313284, 9500896, 10391605, 11054176, 11876120, 12536720, 13817720, 16626568, 18111083, 20783210, 23752240, 25073440, 27635440, 33253136, 36222166, 41566420, 47504480, 55270880, 66506272, 72444332, 83132840, 90555415, 126777581, 144888664, 166265680, 181110830, 253555162, 289777328, 332531360, 362221660, 507110324, 579554656, 633887905, 724443320, 1014220648, 1267775810, 1448886640, 2028441296, 2535551620, 2897773280, 4056882592, 5071103240, 10142206480, 20284412960]

約数ペア:

[(1, 20284412960), (2, 10142206480), (4, 5071103240), (5, 4056882592), (7, 2897773280), (8, 2535551620), (10, 2028441296), (14, 1448886640), (16, 1267775810), (20, 1014220648), (28, 724443320), (32, 633887905), (35, 579554656), (40, 507110324), (56, 362221660), (61, 332531360), (70, 289777328), (80, 253555162), (112, 181110830), (122, 166265680), (140, 144888664), (160, 126777581), (224, 90555415), (244, 83132840), (280, 72444332), (305, 66506272), (367, 55270880), (427, 47504480), (488, 41566420), (560, 36222166), (610, 33253136), (734, 27635440), (809, 25073440), (854, 23752240), (976, 20783210), (1120, 18111083), (1220, 16626568), (1468, 13817720), (1618, 12536720), (1708, 11876120), (1835, 11054176), (1952, 10391605), (2135, 9500896), (2440, 8313284), (2569, 7895840), (2936, 6908860), (3236, 6268360), (3416, 5938060), (3670, 5527088), (4045, 5014688), (4270, 4750448), (4880, 4156642), (5138, 3947920), (5663, 3581920), (5872, 3454430), (6472, 3134180), (6832, 2969030), (7340, 2763544), (8090, 2507344), (8540, 2375224), (9760, 2078321), (10276, 1973960), (11326, 1790960), (11744, 1727215), (12845, 1579168), (12944, 1567090), (13664, 1484515), (14680, 1381772), (16180, 1253672), (17080, 1187612), (20552, 986980), (22387, 906080), (22652, 895480), (25690, 789584), (25888, 783545), (28315, 716384), (29360, 690886), (32360, 626836), (34160, 593806), (41104, 493490), (44774, 453040), (45304, 447740), (49349, 411040), (51380, 394792), (56630, 358192), (58720, 345443), (64720, 313418), (68320, 296903), (82208, 246745), (89548, 226520), (90608, 223870), (98698, 205520), (102760, 197396), (111935, 181216), (113260, 179096), (129440, 156709)]