890456860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{607}}^1\times {\mathrm{1789}}^1$

素因数の和:2446

約数の個数: 48

約数和(自身を含む): 1919796480

約数和(自身を除く): 1029339620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 607, 820, 1214, 1789, 2428, 3035, 3578, 6070, 7156, 8945, 12140, 17890, 24887, 35780, 49774, 73349, 99548, 124435, 146698, 248870, 293396, 366745, 497740, 733490, 1085923, 1466980, 2171846, 4343692, 5429615, 10859230, 21718460, 44522843, 89045686, 178091372, 222614215, 445228430, 890456860]

約数ペア:

[(1, 890456860), (2, 445228430), (4, 222614215), (5, 178091372), (10, 89045686), (20, 44522843), (41, 21718460), (82, 10859230), (164, 5429615), (205, 4343692), (410, 2171846), (607, 1466980), (820, 1085923), (1214, 733490), (1789, 497740), (2428, 366745), (3035, 293396), (3578, 248870), (6070, 146698), (7156, 124435), (8945, 99548), (12140, 73349), (17890, 49774), (24887, 35780)]