161489140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{110609}}^1$

素因数の和:110691

約数の個数: 24

約数和(自身を含む): 343775880

約数和(自身を除く): 182286740

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 110609, 221218, 442436, 553045, 1106090, 2212180, 8074457, 16148914, 32297828, 40372285, 80744570, 161489140]

約数ペア:

[(1, 161489140), (2, 80744570), (4, 40372285), (5, 32297828), (10, 16148914), (20, 8074457), (73, 2212180), (146, 1106090), (292, 553045), (365, 442436), (730, 221218), (1460, 110609)]