25221820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97007}}^1$

素因数の和:97029

約数の個数: 24

約数和(自身を含む): 57040704

約数和(自身を除く): 31818884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 97007, 194014, 388028, 485035, 970070, 1261091, 1940140, 2522182, 5044364, 6305455, 12610910, 25221820]

約数ペア:

[(1, 25221820), (2, 12610910), (4, 6305455), (5, 5044364), (10, 2522182), (13, 1940140), (20, 1261091), (26, 970070), (52, 485035), (65, 388028), (130, 194014), (260, 97007)]