19902012

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1129}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 50497440

約数和(自身を除く): 30595428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 113, 156, 226, 339, 452, 678, 1129, 1356, 1469, 2258, 2938, 3387, 4407, 4516, 5876, 6774, 8814, 13548, 14677, 17628, 29354, 44031, 58708, 88062, 127577, 176124, 255154, 382731, 510308, 765462, 1530924, 1658501, 3317002, 4975503, 6634004, 9951006, 19902012]

約数ペア:

[(1, 19902012), (2, 9951006), (3, 6634004), (4, 4975503), (6, 3317002), (12, 1658501), (13, 1530924), (26, 765462), (39, 510308), (52, 382731), (78, 255154), (113, 176124), (156, 127577), (226, 88062), (339, 58708), (452, 44031), (678, 29354), (1129, 17628), (1356, 14677), (1469, 13548), (2258, 8814), (2938, 6774), (3387, 5876), (4407, 4516)]