319641505

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{5431}}^1$

素因数の和:5664

約数の個数: 16

約数和(自身を含む): 391104000

約数和(自身を除く): 71462495

約数列:

[1, 5, 79, 149, 395, 745, 5431, 11771, 27155, 58855, 429049, 809219, 2145245, 4046095, 63928301, 319641505]

約数ペア:

[(1, 319641505), (5, 63928301), (79, 4046095), (149, 2145245), (395, 809219), (745, 429049), (5431, 58855), (11771, 27155)]