164611120

素因数分解:

$2^4\times 5^1\times {\mathrm{2057639}}^1$

素因数の和:2057652

約数の個数: 20

約数和(自身を含む): 382721040

約数和(自身を除く): 218109920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2057639, 4115278, 8230556, 10288195, 16461112, 20576390, 32922224, 41152780, 82305560, 164611120]

約数ペア:

[(1, 164611120), (2, 82305560), (4, 41152780), (5, 32922224), (8, 20576390), (10, 16461112), (16, 10288195), (20, 8230556), (40, 4115278), (80, 2057639)]