20511340

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6883}}^1$

素因数の和:7041

約数の個数: 24

約数和(自身を含む): 43369200

約数和(自身を除く): 22857860

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6883, 13766, 27532, 34415, 68830, 137660, 1025567, 2051134, 4102268, 5127835, 10255670, 20511340]

約数ペア:

[(1, 20511340), (2, 10255670), (4, 5127835), (5, 4102268), (10, 2051134), (20, 1025567), (149, 137660), (298, 68830), (596, 34415), (745, 27532), (1490, 13766), (2980, 6883)]