20805530830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42460267}}^1$

素因数の和:42460288

約数の個数: 24

約数和(自身を含む): 43564234968

約数和(自身を除く): 22758704138

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42460267, 84920534, 212301335, 297221869, 424602670, 594443738, 1486109345, 2080553083, 2972218690, 4161106166, 10402765415, 20805530830]

約数ペア:

[(1, 20805530830), (2, 10402765415), (5, 4161106166), (7, 2972218690), (10, 2080553083), (14, 1486109345), (35, 594443738), (49, 424602670), (70, 297221869), (98, 212301335), (245, 84920534), (490, 42460267)]