8581820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2539}}^1$

素因数の和:2574

約数の個数: 36

約数和(自身を含む): 19522440

約数和(自身を除く): 10940620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2539, 3380, 5078, 10156, 12695, 25390, 33007, 50780, 66014, 132028, 165035, 330070, 429091, 660140, 858182, 1716364, 2145455, 4290910, 8581820]

約数ペア:

[(1, 8581820), (2, 4290910), (4, 2145455), (5, 1716364), (10, 858182), (13, 660140), (20, 429091), (26, 330070), (52, 165035), (65, 132028), (130, 66014), (169, 50780), (260, 33007), (338, 25390), (676, 12695), (845, 10156), (1690, 5078), (2539, 3380)]