25343740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 56335104

約数和(自身を除く): 30991364

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 997, 1271, 1994, 2542, 3988, 4985, 5084, 6355, 9970, 12710, 19940, 25420, 30907, 40877, 61814, 81754, 123628, 154535, 163508, 204385, 309070, 408770, 618140, 817540, 1267187, 2534374, 5068748, 6335935, 12671870, 25343740]

約数ペア:

[(1, 25343740), (2, 12671870), (4, 6335935), (5, 5068748), (10, 2534374), (20, 1267187), (31, 817540), (41, 618140), (62, 408770), (82, 309070), (124, 204385), (155, 163508), (164, 154535), (205, 123628), (310, 81754), (410, 61814), (620, 40877), (820, 30907), (997, 25420), (1271, 19940), (1994, 12710), (2542, 9970), (3988, 6355), (4985, 5084)]