3971825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:146

約数の個数: 36

約数和(自身を含む): 5887644

約数和(自身を除く): 1915819

約数列:

[1, 5, 11, 13, 25, 55, 65, 101, 121, 143, 275, 325, 505, 605, 715, 1111, 1313, 1573, 2525, 3025, 3575, 5555, 6565, 7865, 12221, 14443, 27775, 32825, 39325, 61105, 72215, 158873, 305525, 361075, 794365, 3971825]

約数ペア:

[(1, 3971825), (5, 794365), (11, 361075), (13, 305525), (25, 158873), (55, 72215), (65, 61105), (101, 39325), (121, 32825), (143, 27775), (275, 14443), (325, 12221), (505, 7865), (605, 6565), (715, 5555), (1111, 3575), (1313, 3025), (1573, 2525)]