8119640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4951}}^1$

素因数の和:5003

約数の個数: 32

約数和(自身を含む): 18718560

約数和(自身を除く): 10598920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4951, 9902, 19804, 24755, 39608, 49510, 99020, 198040, 202991, 405982, 811964, 1014955, 1623928, 2029910, 4059820, 8119640]

約数ペア:

[(1, 8119640), (2, 4059820), (4, 2029910), (5, 1623928), (8, 1014955), (10, 811964), (20, 405982), (40, 202991), (41, 198040), (82, 99020), (164, 49510), (205, 39608), (328, 24755), (410, 19804), (820, 9902), (1640, 4951)]