28908560

素因数分解:

$2^4\times 5^1\times {\mathrm{361357}}^1$

素因数の和:361370

約数の個数: 20

約数和(自身を含む): 67212588

約数和(自身を除く): 38304028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 361357, 722714, 1445428, 1806785, 2890856, 3613570, 5781712, 7227140, 14454280, 28908560]

約数ペア:

[(1, 28908560), (2, 14454280), (4, 7227140), (5, 5781712), (8, 3613570), (10, 2890856), (16, 1806785), (20, 1445428), (40, 722714), (80, 361357)]