79810120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4951}}^1$

素因数の和:5006

約数の個数: 64

約数和(自身を含む): 199664640

約数和(自身を除く): 119854520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 4951, 8060, 9902, 16120, 19804, 24755, 39608, 49510, 64363, 99020, 128726, 153481, 198040, 257452, 306962, 321815, 514904, 613924, 643630, 767405, 1227848, 1287260, 1534810, 1995253, 2574520, 3069620, 3990506, 6139240, 7981012, 9976265, 15962024, 19952530, 39905060, 79810120]

約数ペア:

[(1, 79810120), (2, 39905060), (4, 19952530), (5, 15962024), (8, 9976265), (10, 7981012), (13, 6139240), (20, 3990506), (26, 3069620), (31, 2574520), (40, 1995253), (52, 1534810), (62, 1287260), (65, 1227848), (104, 767405), (124, 643630), (130, 613924), (155, 514904), (248, 321815), (260, 306962), (310, 257452), (403, 198040), (520, 153481), (620, 128726), (806, 99020), (1240, 64363), (1612, 49510), (2015, 39608), (3224, 24755), (4030, 19804), (4951, 16120), (8060, 9902)]