80305220

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{4951}}^1$

素因数の和:5771

約数の個数: 24

約数和(自身を含む): 168883008

約数和(自身を除く): 88577788

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 4951, 8110, 9902, 16220, 19804, 24755, 49510, 99020, 4015261, 8030522, 16061044, 20076305, 40152610, 80305220]

約数ペア:

[(1, 80305220), (2, 40152610), (4, 20076305), (5, 16061044), (10, 8030522), (20, 4015261), (811, 99020), (1622, 49510), (3244, 24755), (4055, 19804), (4951, 16220), (8110, 9902)]