27890915

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{2539}}^1$

素因数の和:2583

約数の個数: 16

約数和(自身を含む): 36271200

約数和(自身を除く): 8380285

約数列:

[1, 5, 13, 65, 169, 845, 2197, 2539, 10985, 12695, 33007, 165035, 429091, 2145455, 5578183, 27890915]

約数ペア:

[(1, 27890915), (5, 5578183), (13, 2145455), (65, 429091), (169, 165035), (845, 33007), (2197, 12695), (2539, 10985)]