163951825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^2$

素因数の和:262

約数の個数: 36

約数和(自身を含む): 222806052

約数和(自身を除く): 58854227

約数列:

[1, 5, 17, 25, 41, 85, 97, 205, 425, 485, 697, 1025, 1649, 2425, 3485, 3977, 8245, 9409, 17425, 19885, 41225, 47045, 67609, 99425, 159953, 235225, 338045, 385769, 799765, 1690225, 1928845, 3998825, 6558073, 9644225, 32790365, 163951825]

約数ペア:

[(1, 163951825), (5, 32790365), (17, 9644225), (25, 6558073), (41, 3998825), (85, 1928845), (97, 1690225), (205, 799765), (425, 385769), (485, 338045), (697, 235225), (1025, 159953), (1649, 99425), (2425, 67609), (3485, 47045), (3977, 41225), (8245, 19885), (9409, 17425)]