16640025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 30140928

約数和(自身を除く): 13500903

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 155, 255, 421, 425, 465, 527, 775, 1263, 1275, 1581, 2105, 2325, 2635, 6315, 7157, 7905, 10525, 13051, 13175, 21471, 31575, 35785, 39153, 39525, 65255, 107355, 178925, 195765, 221867, 326275, 536775, 665601, 978825, 1109335, 3328005, 5546675, 16640025]

約数ペア:

[(1, 16640025), (3, 5546675), (5, 3328005), (15, 1109335), (17, 978825), (25, 665601), (31, 536775), (51, 326275), (75, 221867), (85, 195765), (93, 178925), (155, 107355), (255, 65255), (421, 39525), (425, 39153), (465, 35785), (527, 31575), (775, 21471), (1263, 13175), (1275, 13051), (1581, 10525), (2105, 7905), (2325, 7157), (2635, 6315)]