28654890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1$

素因数の和:1315

約数の個数: 64

約数和(自身を含む): 76142592

約数和(自身を除く): 47487702

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 1065, 1223, 1562, 2130, 2343, 2446, 3669, 3905, 4686, 6115, 7338, 7810, 11715, 12230, 13453, 18345, 23430, 26906, 36690, 40359, 67265, 80718, 86833, 134530, 173666, 201795, 260499, 403590, 434165, 520998, 868330, 955163, 1302495, 1910326, 2604990, 2865489, 4775815, 5730978, 9551630, 14327445, 28654890]

約数ペア:

[(1, 28654890), (2, 14327445), (3, 9551630), (5, 5730978), (6, 4775815), (10, 2865489), (11, 2604990), (15, 1910326), (22, 1302495), (30, 955163), (33, 868330), (55, 520998), (66, 434165), (71, 403590), (110, 260499), (142, 201795), (165, 173666), (213, 134530), (330, 86833), (355, 80718), (426, 67265), (710, 40359), (781, 36690), (1065, 26906), (1223, 23430), (1562, 18345), (2130, 13453), (2343, 12230), (2446, 11715), (3669, 7810), (3905, 7338), (4686, 6115)]