79271920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10889}}^1$

素因数の和:10922

約数の個数: 80

約数和(自身を含む): 226860480

約数和(自身を除く): 147588560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 10889, 21778, 43556, 54445, 76223, 87112, 108890, 141557, 152446, 174224, 217780, 283114, 304892, 381115, 435560, 566228, 609784, 707785, 762230, 871120, 990899, 1132456, 1219568, 1415570, 1524460, 1981798, 2264912, 2831140, 3048920, 3963596, 4954495, 5662280, 6097840, 7927192, 9908990, 11324560, 15854384, 19817980, 39635960, 79271920]

約数ペア:

[(1, 79271920), (2, 39635960), (4, 19817980), (5, 15854384), (7, 11324560), (8, 9908990), (10, 7927192), (13, 6097840), (14, 5662280), (16, 4954495), (20, 3963596), (26, 3048920), (28, 2831140), (35, 2264912), (40, 1981798), (52, 1524460), (56, 1415570), (65, 1219568), (70, 1132456), (80, 990899), (91, 871120), (104, 762230), (112, 707785), (130, 609784), (140, 566228), (182, 435560), (208, 381115), (260, 304892), (280, 283114), (364, 217780), (455, 174224), (520, 152446), (560, 141557), (728, 108890), (910, 87112), (1040, 76223), (1456, 54445), (1820, 43556), (3640, 21778), (7280, 10889)]