257631426

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{18049}}^1$

素因数の和:18131

約数の個数: 48

約数和(自身を含む): 611028600

約数和(自身を除く): 353397174

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 61, 78, 117, 122, 183, 234, 366, 549, 793, 1098, 1586, 2379, 4758, 7137, 14274, 18049, 36098, 54147, 108294, 162441, 234637, 324882, 469274, 703911, 1100989, 1407822, 2111733, 2201978, 3302967, 4223466, 6605934, 9908901, 14312857, 19817802, 28625714, 42938571, 85877142, 128815713, 257631426]

約数ペア:

[(1, 257631426), (2, 128815713), (3, 85877142), (6, 42938571), (9, 28625714), (13, 19817802), (18, 14312857), (26, 9908901), (39, 6605934), (61, 4223466), (78, 3302967), (117, 2201978), (122, 2111733), (183, 1407822), (234, 1100989), (366, 703911), (549, 469274), (793, 324882), (1098, 234637), (1586, 162441), (2379, 108294), (4758, 54147), (7137, 36098), (14274, 18049)]