78123123

素因数分解:

$3^4\times {\mathrm{13}}^3\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 40

約数和(自身を含む): 126711200

約数和(自身を除く): 48588077

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 351, 439, 507, 1053, 1317, 1521, 2197, 3951, 4563, 5707, 6591, 11853, 13689, 17121, 19773, 35559, 51363, 59319, 74191, 154089, 177957, 222573, 462267, 667719, 964483, 2003157, 2893449, 6009471, 8680347, 26041041, 78123123]

約数ペア:

[(1, 78123123), (3, 26041041), (9, 8680347), (13, 6009471), (27, 2893449), (39, 2003157), (81, 964483), (117, 667719), (169, 462267), (351, 222573), (439, 177957), (507, 154089), (1053, 74191), (1317, 59319), (1521, 51363), (2197, 35559), (3951, 19773), (4563, 17121), (5707, 13689), (6591, 11853)]