289388390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{997891}}^1$

素因数の和:997927

約数の個数: 16

約数和(自身を含む): 538861680

約数和(自身を除く): 249473290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 997891, 1995782, 4989455, 9978910, 28938839, 57877678, 144694195, 289388390]

約数ペア:

[(1, 289388390), (2, 144694195), (5, 57877678), (10, 28938839), (29, 9978910), (58, 4989455), (145, 1995782), (290, 997891)]