289375660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2066969}}^1$

素因数の和:2066985

約数の個数: 24

約数和(自身を含む): 694501920

約数和(自身を除く): 405126260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2066969, 4133938, 8267876, 10334845, 14468783, 20669690, 28937566, 41339380, 57875132, 72343915, 144687830, 289375660]

約数ペア:

[(1, 289375660), (2, 144687830), (4, 72343915), (5, 57875132), (7, 41339380), (10, 28937566), (14, 20669690), (20, 14468783), (28, 10334845), (35, 8267876), (70, 4133938), (140, 2066969)]