81352975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^2$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 114981480

約数和(自身を除く): 33628505

約数列:

[1, 5, 11, 25, 29, 55, 101, 145, 275, 319, 505, 725, 1111, 1595, 2525, 2929, 5555, 7975, 10201, 14645, 27775, 32219, 51005, 73225, 112211, 161095, 255025, 295829, 561055, 805475, 1479145, 2805275, 3254119, 7395725, 16270595, 81352975]

約数ペア:

[(1, 81352975), (5, 16270595), (11, 7395725), (25, 3254119), (29, 2805275), (55, 1479145), (101, 805475), (145, 561055), (275, 295829), (319, 255025), (505, 161095), (725, 112211), (1111, 73225), (1595, 51005), (2525, 32219), (2929, 27775), (5555, 14645), (7975, 10201)]