25545580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20939}}^1$

素因数の和:21009

約数の個数: 24

約数和(自身を含む): 54527760

約数和(自身を除く): 28982180

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 20939, 41878, 83756, 104695, 209390, 418780, 1277279, 2554558, 5109116, 6386395, 12772790, 25545580]

約数ペア:

[(1, 25545580), (2, 12772790), (4, 6386395), (5, 5109116), (10, 2554558), (20, 1277279), (61, 418780), (122, 209390), (244, 104695), (305, 83756), (610, 41878), (1220, 20939)]