12506420

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1631

約数の個数: 24

約数和(自身を含む): 26331648

約数和(自身を除く): 13825228

約数列:

[1, 2, 4, 5, 10, 20, 631, 991, 1262, 1982, 2524, 3155, 3964, 4955, 6310, 9910, 12620, 19820, 625321, 1250642, 2501284, 3126605, 6253210, 12506420]

約数ペア:

[(1, 12506420), (2, 6253210), (4, 3126605), (5, 2501284), (10, 1250642), (20, 625321), (631, 19820), (991, 12620), (1262, 9910), (1982, 6310), (2524, 4955), (3155, 3964)]