157213990

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{74509}}^1$

素因数の和:74727

約数の個数: 16

約数和(自身を含む): 284330160

約数和(自身を除く): 127116170

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 74509, 149018, 372545, 745090, 15721399, 31442798, 78606995, 157213990]

約数ペア:

[(1, 157213990), (2, 78606995), (5, 31442798), (10, 15721399), (211, 745090), (422, 372545), (1055, 149018), (2110, 74509)]