248035710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{635989}}^1$

素因数の和:636012

約数の個数: 32

約数和(自身を含む): 641077920

約数和(自身を除く): 393042210

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 635989, 1271978, 1907967, 3179945, 3815934, 6359890, 8267857, 9539835, 16535714, 19079670, 24803571, 41339285, 49607142, 82678570, 124017855, 248035710]

約数ペア:

[(1, 248035710), (2, 124017855), (3, 82678570), (5, 49607142), (6, 41339285), (10, 24803571), (13, 19079670), (15, 16535714), (26, 9539835), (30, 8267857), (39, 6359890), (65, 3815934), (78, 3179945), (130, 1907967), (195, 1271978), (390, 635989)]