81630725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2939}}^1$

素因数の和:3061

約数の個数: 24

約数和(自身を含む): 111555360

約数和(自身を除く): 29924635

約数列:

[1, 5, 11, 25, 55, 101, 275, 505, 1111, 2525, 2939, 5555, 14695, 27775, 32329, 73475, 161645, 296839, 808225, 1484195, 3265229, 7420975, 16326145, 81630725]

約数ペア:

[(1, 81630725), (5, 16326145), (11, 7420975), (25, 3265229), (55, 1484195), (101, 808225), (275, 296839), (505, 161645), (1111, 73475), (2525, 32329), (2939, 27775), (5555, 14695)]