9089980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1259}}^1$

素因数の和:1306

約数の個数: 36

約数和(自身を含む): 20162520

約数和(自身を除く): 11072540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1259, 1444, 1805, 2518, 3610, 5036, 6295, 7220, 12590, 23921, 25180, 47842, 95684, 119605, 239210, 454499, 478420, 908998, 1817996, 2272495, 4544990, 9089980]

約数ペア:

[(1, 9089980), (2, 4544990), (4, 2272495), (5, 1817996), (10, 908998), (19, 478420), (20, 454499), (38, 239210), (76, 119605), (95, 95684), (190, 47842), (361, 25180), (380, 23921), (722, 12590), (1259, 7220), (1444, 6295), (1805, 5036), (2518, 3610)]