771045885

素因数分解:

$3^4\times 5^1\times {\mathrm{1903817}}^1$

素因数の和:1903834

約数の個数: 20

約数和(自身を含む): 1382171868

約数和(自身を除く): 611125983

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1903817, 5711451, 9519085, 17134353, 28557255, 51403059, 85671765, 154209177, 257015295, 771045885]

約数ペア:

[(1, 771045885), (3, 257015295), (5, 154209177), (9, 85671765), (15, 51403059), (27, 28557255), (45, 17134353), (81, 9519085), (135, 5711451), (405, 1903817)]