7983740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 17633280

約数和(自身を除く): 9649540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 163, 310, 316, 326, 395, 620, 652, 790, 815, 1580, 1630, 2449, 3260, 4898, 5053, 9796, 10106, 12245, 12877, 20212, 24490, 25265, 25754, 48980, 50530, 51508, 64385, 101060, 128770, 257540, 399187, 798374, 1596748, 1995935, 3991870, 7983740]

約数ペア:

[(1, 7983740), (2, 3991870), (4, 1995935), (5, 1596748), (10, 798374), (20, 399187), (31, 257540), (62, 128770), (79, 101060), (124, 64385), (155, 51508), (158, 50530), (163, 48980), (310, 25754), (316, 25265), (326, 24490), (395, 20212), (620, 12877), (652, 12245), (790, 10106), (815, 9796), (1580, 5053), (1630, 4898), (2449, 3260)]