20056986880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{2767}}^1$

素因数の和:3604

約数の個数: 144

約数和(自身を含む): 54993738240

約数和(自身を除く): 34936751360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 809, 896, 1120, 1280, 1618, 1792, 2240, 2767, 3236, 4045, 4480, 5534, 5663, 6472, 8090, 8960, 11068, 11326, 12944, 13835, 16180, 19369, 22136, 22652, 25888, 27670, 28315, 32360, 38738, 44272, 45304, 51776, 55340, 56630, 64720, 77476, 88544, 90608, 96845, 103552, 110680, 113260, 129440, 154952, 177088, 181216, 193690, 207104, 221360, 226520, 258880, 309904, 354176, 362432, 387380, 442720, 453040, 517760, 619808, 708352, 724864, 774760, 885440, 906080, 1035520, 1239616, 1449728, 1549520, 1770880, 1812160, 2238503, 2479232, 3099040, 3541760, 3624320, 4477006, 4958464, 6198080, 7248640, 8954012, 11192515, 12396160, 15669521, 17908024, 22385030, 24792320, 31339042, 35816048, 44770060, 62678084, 71632096, 78347605, 89540120, 125356168, 143264192, 156695210, 179080240, 250712336, 286528384, 313390420, 358160480, 501424672, 573056768, 626780840, 716320960, 1002849344, 1253561680, 1432641920, 2005698688, 2507123360, 2865283840, 4011397376, 5014246720, 10028493440, 20056986880]

約数ペア:

[(1, 20056986880), (2, 10028493440), (4, 5014246720), (5, 4011397376), (7, 2865283840), (8, 2507123360), (10, 2005698688), (14, 1432641920), (16, 1253561680), (20, 1002849344), (28, 716320960), (32, 626780840), (35, 573056768), (40, 501424672), (56, 358160480), (64, 313390420), (70, 286528384), (80, 250712336), (112, 179080240), (128, 156695210), (140, 143264192), (160, 125356168), (224, 89540120), (256, 78347605), (280, 71632096), (320, 62678084), (448, 44770060), (560, 35816048), (640, 31339042), (809, 24792320), (896, 22385030), (1120, 17908024), (1280, 15669521), (1618, 12396160), (1792, 11192515), (2240, 8954012), (2767, 7248640), (3236, 6198080), (4045, 4958464), (4480, 4477006), (5534, 3624320), (5663, 3541760), (6472, 3099040), (8090, 2479232), (8960, 2238503), (11068, 1812160), (11326, 1770880), (12944, 1549520), (13835, 1449728), (16180, 1239616), (19369, 1035520), (22136, 906080), (22652, 885440), (25888, 774760), (27670, 724864), (28315, 708352), (32360, 619808), (38738, 517760), (44272, 453040), (45304, 442720), (51776, 387380), (55340, 362432), (56630, 354176), (64720, 309904), (77476, 258880), (88544, 226520), (90608, 221360), (96845, 207104), (103552, 193690), (110680, 181216), (113260, 177088), (129440, 154952)]