79919920

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5581}}^1$

素因数の和:5773

約数の個数: 40

約数和(自身を含む): 186885360

約数和(自身を除く): 106965440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 5581, 7160, 11162, 14320, 22324, 27905, 44648, 55810, 89296, 111620, 223240, 446480, 998999, 1997998, 3995996, 4994995, 7991992, 9989990, 15983984, 19979980, 39959960, 79919920]

約数ペア:

[(1, 79919920), (2, 39959960), (4, 19979980), (5, 15983984), (8, 9989990), (10, 7991992), (16, 4994995), (20, 3995996), (40, 1997998), (80, 998999), (179, 446480), (358, 223240), (716, 111620), (895, 89296), (1432, 55810), (1790, 44648), (2864, 27905), (3580, 22324), (5581, 14320), (7160, 11162)]