254657390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{13147}}^1$

素因数の和:13316

約数の個数: 32

約数和(自身を含む): 496994400

約数和(自身を除く): 242337010

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 3874, 9685, 13147, 19370, 26294, 65735, 131470, 170911, 341822, 854555, 1709110, 1958903, 3917806, 9794515, 19589030, 25465739, 50931478, 127328695, 254657390]

約数ペア:

[(1, 254657390), (2, 127328695), (5, 50931478), (10, 25465739), (13, 19589030), (26, 9794515), (65, 3917806), (130, 1958903), (149, 1709110), (298, 854555), (745, 341822), (1490, 170911), (1937, 131470), (3874, 65735), (9685, 26294), (13147, 19370)]