28988980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 63584640

約数和(自身を除く): 34595660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 151, 290, 302, 331, 580, 604, 662, 755, 1324, 1510, 1655, 3020, 3310, 4379, 6620, 8758, 9599, 17516, 19198, 21895, 38396, 43790, 47995, 49981, 87580, 95990, 99962, 191980, 199924, 249905, 499810, 999620, 1449449, 2898898, 5797796, 7247245, 14494490, 28988980]

約数ペア:

[(1, 28988980), (2, 14494490), (4, 7247245), (5, 5797796), (10, 2898898), (20, 1449449), (29, 999620), (58, 499810), (116, 249905), (145, 199924), (151, 191980), (290, 99962), (302, 95990), (331, 87580), (580, 49981), (604, 47995), (662, 43790), (755, 38396), (1324, 21895), (1510, 19198), (1655, 17516), (3020, 9599), (3310, 8758), (4379, 6620)]