20123992945

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{24998749}}^1$

素因数の和:24998784

約数の個数: 16

約数和(自身を含む): 28798560000

約数和(自身を除く): 8674567055

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 24998749, 124993745, 174991243, 574971227, 874956215, 2874856135, 4024798589, 20123992945]

約数ペア:

[(1, 20123992945), (5, 4024798589), (7, 2874856135), (23, 874956215), (35, 574971227), (115, 174991243), (161, 124993745), (805, 24998749)]