201995885

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{63421}}^1$

素因数の和:63453

約数の個数: 24

約数和(自身を含む): 303664536

約数和(自身を除く): 101668651

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 63421, 317105, 443947, 824473, 2219735, 3107629, 4122365, 5771311, 15538145, 28856555, 40399177, 201995885]

約数ペア:

[(1, 201995885), (5, 40399177), (7, 28856555), (13, 15538145), (35, 5771311), (49, 4122365), (65, 3107629), (91, 2219735), (245, 824473), (455, 443947), (637, 317105), (3185, 63421)]