25189640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89963}}^1$

素因数の和:89981

約数の個数: 32

約数和(自身を含む): 64774080

約数和(自身を除く): 39584440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 89963, 179926, 359852, 449815, 629741, 719704, 899630, 1259482, 1799260, 2518964, 3148705, 3598520, 5037928, 6297410, 12594820, 25189640]

約数ペア:

[(1, 25189640), (2, 12594820), (4, 6297410), (5, 5037928), (7, 3598520), (8, 3148705), (10, 2518964), (14, 1799260), (20, 1259482), (28, 899630), (35, 719704), (40, 629741), (56, 449815), (70, 359852), (140, 179926), (280, 89963)]