215018020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1535843}}^1$

素因数の和:1535859

約数の個数: 24

約数和(自身を含む): 516043584

約数和(自身を除く): 301025564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1535843, 3071686, 6143372, 7679215, 10750901, 15358430, 21501802, 30716860, 43003604, 53754505, 107509010, 215018020]

約数ペア:

[(1, 215018020), (2, 107509010), (4, 53754505), (5, 43003604), (7, 30716860), (10, 21501802), (14, 15358430), (20, 10750901), (28, 7679215), (35, 6143372), (70, 3071686), (140, 1535843)]