25311340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20747}}^1$

素因数の和:20817

約数の個数: 24

約数和(自身を含む): 54027792

約数和(自身を除く): 28716452

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 20747, 41494, 82988, 103735, 207470, 414940, 1265567, 2531134, 5062268, 6327835, 12655670, 25311340]

約数ペア:

[(1, 25311340), (2, 12655670), (4, 6327835), (5, 5062268), (10, 2531134), (20, 1265567), (61, 414940), (122, 207470), (244, 103735), (305, 82988), (610, 41494), (1220, 20747)]