87909880

素因数分解:

$2^3\times 5^1\times {\mathrm{2197747}}^1$

素因数の和:2197758

約数の個数: 16

約数和(自身を含む): 197797320

約数和(自身を除く): 109887440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2197747, 4395494, 8790988, 10988735, 17581976, 21977470, 43954940, 87909880]

約数ペア:

[(1, 87909880), (2, 43954940), (4, 21977470), (5, 17581976), (8, 10988735), (10, 8790988), (20, 4395494), (40, 2197747)]