188477540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{661}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 405382320

約数和(自身を除く): 216904780

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 269, 530, 538, 661, 1060, 1076, 1322, 1345, 2644, 2690, 3305, 5380, 6610, 13220, 14257, 28514, 35033, 57028, 70066, 71285, 140132, 142570, 175165, 177809, 285140, 350330, 355618, 700660, 711236, 889045, 1778090, 3556180, 9423877, 18847754, 37695508, 47119385, 94238770, 188477540]

約数ペア:

[(1, 188477540), (2, 94238770), (4, 47119385), (5, 37695508), (10, 18847754), (20, 9423877), (53, 3556180), (106, 1778090), (212, 889045), (265, 711236), (269, 700660), (530, 355618), (538, 350330), (661, 285140), (1060, 177809), (1076, 175165), (1322, 142570), (1345, 140132), (2644, 71285), (2690, 70066), (3305, 57028), (5380, 35033), (6610, 28514), (13220, 14257)]