20876303920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6068693}}^1$

素因数の和:6068749

約数の個数: 40

約数和(自身を含む): 49666191696

約数和(自身を除く): 28789887776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 6068693, 12137386, 24274772, 30343465, 48549544, 60686930, 97099088, 121373860, 242747720, 260953799, 485495440, 521907598, 1043815196, 1304768995, 2087630392, 2609537990, 4175260784, 5219075980, 10438151960, 20876303920]

約数ペア:

[(1, 20876303920), (2, 10438151960), (4, 5219075980), (5, 4175260784), (8, 2609537990), (10, 2087630392), (16, 1304768995), (20, 1043815196), (40, 521907598), (43, 485495440), (80, 260953799), (86, 242747720), (172, 121373860), (215, 97099088), (344, 60686930), (430, 48549544), (688, 30343465), (860, 24274772), (1720, 12137386), (3440, 6068693)]