201670245

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640223}}^1$

素因数の和:640241

約数の個数: 24

約数和(自身を含む): 399499776

約数和(自身を除く): 197829531

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640223, 1920669, 3201115, 4481561, 5762007, 9603345, 13444683, 22407805, 28810035, 40334049, 67223415, 201670245]

約数ペア:

[(1, 201670245), (3, 67223415), (5, 40334049), (7, 28810035), (9, 22407805), (15, 13444683), (21, 9603345), (35, 5762007), (45, 4481561), (63, 3201115), (105, 1920669), (315, 640223)]