20411286740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{433729}}^1$

素因数の和:433932

約数の個数: 48

約数和(自身を含む): 46416049680

約数和(自身を除く): 26004762940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1810, 2353, 3620, 4706, 9412, 11765, 23530, 47060, 433729, 867458, 1734916, 2168645, 4337290, 5638477, 8674580, 11276954, 22553908, 28192385, 56384770, 78504949, 112769540, 157009898, 314019796, 392524745, 785049490, 1020564337, 1570098980, 2041128674, 4082257348, 5102821685, 10205643370, 20411286740]

約数ペア:

[(1, 20411286740), (2, 10205643370), (4, 5102821685), (5, 4082257348), (10, 2041128674), (13, 1570098980), (20, 1020564337), (26, 785049490), (52, 392524745), (65, 314019796), (130, 157009898), (181, 112769540), (260, 78504949), (362, 56384770), (724, 28192385), (905, 22553908), (1810, 11276954), (2353, 8674580), (3620, 5638477), (4706, 4337290), (9412, 2168645), (11765, 1734916), (23530, 867458), (47060, 433729)]