18009940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{613}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 41157648

約数和(自身を除く): 23147708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 613, 1130, 1226, 1469, 2260, 2452, 2938, 3065, 5876, 6130, 7345, 7969, 12260, 14690, 15938, 29380, 31876, 39845, 69269, 79690, 138538, 159380, 277076, 346345, 692690, 900497, 1385380, 1800994, 3601988, 4502485, 9004970, 18009940]

約数ペア:

[(1, 18009940), (2, 9004970), (4, 4502485), (5, 3601988), (10, 1800994), (13, 1385380), (20, 900497), (26, 692690), (52, 346345), (65, 277076), (113, 159380), (130, 138538), (226, 79690), (260, 69269), (452, 39845), (565, 31876), (613, 29380), (1130, 15938), (1226, 14690), (1469, 12260), (2260, 7969), (2452, 7345), (2938, 6130), (3065, 5876)]