28228005

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 53494896

約数和(自身を除く): 25266891

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 73, 117, 195, 219, 365, 585, 657, 661, 949, 1095, 1983, 2847, 3285, 3305, 4745, 5949, 8541, 8593, 9915, 14235, 25779, 29745, 42705, 42965, 48253, 77337, 128895, 144759, 241265, 386685, 434277, 627289, 723795, 1881867, 2171385, 3136445, 5645601, 9409335, 28228005]

約数ペア:

[(1, 28228005), (3, 9409335), (5, 5645601), (9, 3136445), (13, 2171385), (15, 1881867), (39, 723795), (45, 627289), (65, 434277), (73, 386685), (117, 241265), (195, 144759), (219, 128895), (365, 77337), (585, 48253), (657, 42965), (661, 42705), (949, 29745), (1095, 25779), (1983, 14235), (2847, 9915), (3285, 8593), (3305, 8541), (4745, 5949)]