2144740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 4960368

約数和(自身を除く): 2815628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 113, 130, 146, 226, 260, 292, 365, 452, 565, 730, 949, 1130, 1460, 1469, 1898, 2260, 2938, 3796, 4745, 5876, 7345, 8249, 9490, 14690, 16498, 18980, 29380, 32996, 41245, 82490, 107237, 164980, 214474, 428948, 536185, 1072370, 2144740]

約数ペア:

[(1, 2144740), (2, 1072370), (4, 536185), (5, 428948), (10, 214474), (13, 164980), (20, 107237), (26, 82490), (52, 41245), (65, 32996), (73, 29380), (113, 18980), (130, 16498), (146, 14690), (226, 9490), (260, 8249), (292, 7345), (365, 5876), (452, 4745), (565, 3796), (730, 2938), (949, 2260), (1130, 1898), (1460, 1469)]