201631185

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640099}}^1$

素因数の和:640117

約数の個数: 24

約数和(自身を含む): 399422400

約数和(自身を除く): 197791215

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640099, 1920297, 3200495, 4480693, 5760891, 9601485, 13442079, 22403465, 28804455, 40326237, 67210395, 201631185]

約数ペア:

[(1, 201631185), (3, 67210395), (5, 40326237), (7, 28804455), (9, 22403465), (15, 13442079), (21, 9601485), (35, 5760891), (45, 4480693), (63, 3200495), (105, 1920297), (315, 640099)]