25913740

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7949}}^1$

素因数の和:8121

約数の個数: 24

約数和(自身を含む): 54759600

約数和(自身を除く): 28845860

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 7949, 15898, 31796, 39745, 79490, 158980, 1295687, 2591374, 5182748, 6478435, 12956870, 25913740]

約数ペア:

[(1, 25913740), (2, 12956870), (4, 6478435), (5, 5182748), (10, 2591374), (20, 1295687), (163, 158980), (326, 79490), (652, 39745), (815, 31796), (1630, 15898), (3260, 7949)]