9640377640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1\times {\mathrm{2719}}^1$

素因数の和:3514

約数の個数: 64

約数和(自身を含む): 21890995200

約数和(自身を除く): 12250617560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 647, 685, 1096, 1294, 1370, 2588, 2719, 2740, 3235, 5176, 5438, 5480, 6470, 10876, 12940, 13595, 21752, 25880, 27190, 54380, 88639, 108760, 177278, 354556, 372503, 443195, 709112, 745006, 886390, 1490012, 1759193, 1772780, 1862515, 2980024, 3518386, 3545560, 3725030, 7036772, 7450060, 8795965, 14073544, 14900120, 17591930, 35183860, 70367720, 241009441, 482018882, 964037764, 1205047205, 1928075528, 2410094410, 4820188820, 9640377640]

約数ペア:

[(1, 9640377640), (2, 4820188820), (4, 2410094410), (5, 1928075528), (8, 1205047205), (10, 964037764), (20, 482018882), (40, 241009441), (137, 70367720), (274, 35183860), (548, 17591930), (647, 14900120), (685, 14073544), (1096, 8795965), (1294, 7450060), (1370, 7036772), (2588, 3725030), (2719, 3545560), (2740, 3518386), (3235, 2980024), (5176, 1862515), (5438, 1772780), (5480, 1759193), (6470, 1490012), (10876, 886390), (12940, 745006), (13595, 709112), (21752, 443195), (25880, 372503), (27190, 354556), (54380, 177278), (88639, 108760)]