28742025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 23754615

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 195, 205, 325, 533, 615, 719, 975, 1025, 1599, 2157, 2665, 3075, 3595, 7995, 9347, 10785, 13325, 17975, 28041, 29479, 39975, 46735, 53925, 88437, 140205, 147395, 233675, 383227, 442185, 701025, 736975, 1149681, 1916135, 2210925, 5748405, 9580675, 28742025]

約数ペア:

[(1, 28742025), (3, 9580675), (5, 5748405), (13, 2210925), (15, 1916135), (25, 1149681), (39, 736975), (41, 701025), (65, 442185), (75, 383227), (123, 233675), (195, 147395), (205, 140205), (325, 88437), (533, 53925), (615, 46735), (719, 39975), (975, 29479), (1025, 28041), (1599, 17975), (2157, 13325), (2665, 10785), (3075, 9347), (3595, 7995)]