421531630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{249427}}^1$

素因数の和:249460

約数の個数: 24

約数和(自身を含む): 821615832

約数和(自身を除く): 400084202

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 249427, 498854, 1247135, 2494270, 3242551, 6485102, 16212755, 32425510, 42153163, 84306326, 210765815, 421531630]

約数ペア:

[(1, 421531630), (2, 210765815), (5, 84306326), (10, 42153163), (13, 32425510), (26, 16212755), (65, 6485102), (130, 3242551), (169, 2494270), (338, 1247135), (845, 498854), (1690, 249427)]