321405890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{190181}}^1$

素因数の和:190214

約数の個数: 24

約数和(自身を含む): 626459508

約数和(自身を除く): 305053618

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 190181, 380362, 950905, 1901810, 2472353, 4944706, 12361765, 24723530, 32140589, 64281178, 160702945, 321405890]

約数ペア:

[(1, 321405890), (2, 160702945), (5, 64281178), (10, 32140589), (13, 24723530), (26, 12361765), (65, 4944706), (130, 2472353), (169, 1901810), (338, 950905), (845, 380362), (1690, 190181)]