39918700

素因数分解:

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

素因数の和:287

約数の個数: 72

約数和(自身を含む): 91105280

約数和(自身を除く): 51186580

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 79, 100, 124, 155, 158, 163, 310, 316, 326, 395, 620, 652, 775, 790, 815, 1550, 1580, 1630, 1975, 2449, 3100, 3260, 3950, 4075, 4898, 5053, 7900, 8150, 9796, 10106, 12245, 12877, 16300, 20212, 24490, 25265, 25754, 48980, 50530, 51508, 61225, 64385, 101060, 122450, 126325, 128770, 244900, 252650, 257540, 321925, 399187, 505300, 643850, 798374, 1287700, 1596748, 1995935, 3991870, 7983740, 9979675, 19959350, 39918700]

約数ペア:

[(1, 39918700), (2, 19959350), (4, 9979675), (5, 7983740), (10, 3991870), (20, 1995935), (25, 1596748), (31, 1287700), (50, 798374), (62, 643850), (79, 505300), (100, 399187), (124, 321925), (155, 257540), (158, 252650), (163, 244900), (310, 128770), (316, 126325), (326, 122450), (395, 101060), (620, 64385), (652, 61225), (775, 51508), (790, 50530), (815, 48980), (1550, 25754), (1580, 25265), (1630, 24490), (1975, 20212), (2449, 16300), (3100, 12877), (3260, 12245), (3950, 10106), (4075, 9796), (4898, 8150), (5053, 7900)]