1640425345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{198719}}^1$

素因数の和:198864

約数の個数: 16

約数和(自身を含む): 2136637440

約数和(自身を除く): 496212095

約数列:

[1, 5, 13, 65, 127, 635, 1651, 8255, 198719, 993595, 2583347, 12916735, 25237313, 126186565, 328085069, 1640425345]

約数ペア:

[(1, 1640425345), (5, 328085069), (13, 126186565), (65, 25237313), (127, 12916735), (635, 2583347), (1651, 993595), (8255, 198719)]