25728988

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 45837792

約数和(自身を除く): 20108804

約数列:

[1, 2, 4, 103, 197, 206, 317, 394, 412, 634, 788, 1268, 20291, 32651, 40582, 62449, 65302, 81164, 124898, 130604, 249796, 6432247, 12864494, 25728988]

約数ペア:

[(1, 25728988), (2, 12864494), (4, 6432247), (103, 249796), (197, 130604), (206, 124898), (317, 81164), (394, 65302), (412, 62449), (634, 40582), (788, 32651), (1268, 20291)]