20344340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14327}}^1$

素因数の和:14407

約数の個数: 24

約数和(自身を含む): 43327872

約数和(自身を除く): 22983532

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14327, 28654, 57308, 71635, 143270, 286540, 1017217, 2034434, 4068868, 5086085, 10172170, 20344340]

約数ペア:

[(1, 20344340), (2, 10172170), (4, 5086085), (5, 4068868), (10, 2034434), (20, 1017217), (71, 286540), (142, 143270), (284, 71635), (355, 57308), (710, 28654), (1420, 14327)]