20189180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 46617984

約数和(自身を除く): 26428804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 563, 652, 815, 1126, 1630, 1793, 2252, 2815, 3260, 3586, 5630, 6193, 7172, 8965, 11260, 12386, 17930, 24772, 30965, 35860, 61930, 91769, 123860, 183538, 367076, 458845, 917690, 1009459, 1835380, 2018918, 4037836, 5047295, 10094590, 20189180]

約数ペア:

[(1, 20189180), (2, 10094590), (4, 5047295), (5, 4037836), (10, 2018918), (11, 1835380), (20, 1009459), (22, 917690), (44, 458845), (55, 367076), (110, 183538), (163, 123860), (220, 91769), (326, 61930), (563, 35860), (652, 30965), (815, 24772), (1126, 17930), (1630, 12386), (1793, 11260), (2252, 8965), (2815, 7172), (3260, 6193), (3586, 5630)]