25091740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 54309024

約数和(自身を除く): 29217284

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 157, 244, 262, 305, 314, 524, 610, 628, 655, 785, 1220, 1310, 1570, 2620, 3140, 7991, 9577, 15982, 19154, 20567, 31964, 38308, 39955, 41134, 47885, 79910, 82268, 95770, 102835, 159820, 191540, 205670, 411340, 1254587, 2509174, 5018348, 6272935, 12545870, 25091740]

約数ペア:

[(1, 25091740), (2, 12545870), (4, 6272935), (5, 5018348), (10, 2509174), (20, 1254587), (61, 411340), (122, 205670), (131, 191540), (157, 159820), (244, 102835), (262, 95770), (305, 82268), (314, 79910), (524, 47885), (610, 41134), (628, 39955), (655, 38308), (785, 31964), (1220, 20567), (1310, 19154), (1570, 15982), (2620, 9577), (3140, 7991)]