291510830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{13757}}^1$

素因数の和:13940

約数の個数: 32

約数和(自身を含む): 568590624

約数和(自身を除く): 277079794

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 815, 1630, 2119, 4238, 10595, 13757, 21190, 27514, 68785, 137570, 178841, 357682, 894205, 1788410, 2242391, 4484782, 11211955, 22423910, 29151083, 58302166, 145755415, 291510830]

約数ペア:

[(1, 291510830), (2, 145755415), (5, 58302166), (10, 29151083), (13, 22423910), (26, 11211955), (65, 4484782), (130, 2242391), (163, 1788410), (326, 894205), (815, 357682), (1630, 178841), (2119, 137570), (4238, 68785), (10595, 27514), (13757, 21190)]