290465240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{558587}}^1$

素因数の和:558611

約数の個数: 32

約数和(自身を含む): 703820880

約数和(自身を除く): 413355640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 558587, 1117174, 2234348, 2792935, 4468696, 5585870, 7261631, 11171740, 14523262, 22343480, 29046524, 36308155, 58093048, 72616310, 145232620, 290465240]

約数ペア:

[(1, 290465240), (2, 145232620), (4, 72616310), (5, 58093048), (8, 36308155), (10, 29046524), (13, 22343480), (20, 14523262), (26, 11171740), (40, 7261631), (52, 5585870), (65, 4468696), (104, 2792935), (130, 2234348), (260, 1117174), (520, 558587)]