2219445

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 4173312

約数和(自身を除く): 1953867

約数列:

[1, 3, 5, 9, 15, 31, 37, 43, 45, 93, 111, 129, 155, 185, 215, 279, 333, 387, 465, 555, 645, 1147, 1333, 1395, 1591, 1665, 1935, 3441, 3999, 4773, 5735, 6665, 7955, 10323, 11997, 14319, 17205, 19995, 23865, 49321, 51615, 59985, 71595, 147963, 246605, 443889, 739815, 2219445]

約数ペア:

[(1, 2219445), (3, 739815), (5, 443889), (9, 246605), (15, 147963), (31, 71595), (37, 59985), (43, 51615), (45, 49321), (93, 23865), (111, 19995), (129, 17205), (155, 14319), (185, 11997), (215, 10323), (279, 7955), (333, 6665), (387, 5735), (465, 4773), (555, 3999), (645, 3441), (1147, 1935), (1333, 1665), (1395, 1591)]