289771390

素因数分解:

$2^1\times 5^1\times {\mathrm{7001}}^1\times {\mathrm{4139}}^1$

素因数の和:11147

約数の個数: 16

約数和(自身を含む): 521789040

約数和(自身を除く): 232017650

約数列:

[1, 2, 5, 10, 4139, 7001, 8278, 14002, 20695, 35005, 41390, 70010, 28977139, 57954278, 144885695, 289771390]

約数ペア:

[(1, 289771390), (2, 144885695), (5, 57954278), (10, 28977139), (4139, 70010), (7001, 41390), (8278, 35005), (14002, 20695)]