20867980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149057}}^1$

素因数の和:149073

約数の個数: 24

約数和(自身を含む): 50083488

約数和(自身を除く): 29215508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149057, 298114, 596228, 745285, 1043399, 1490570, 2086798, 2981140, 4173596, 5216995, 10433990, 20867980]

約数ペア:

[(1, 20867980), (2, 10433990), (4, 5216995), (5, 4173596), (7, 2981140), (10, 2086798), (14, 1490570), (20, 1043399), (28, 745285), (35, 596228), (70, 298114), (140, 149057)]