20572060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 25997540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1259, 1634, 2518, 3268, 4085, 5036, 6295, 8170, 12590, 16340, 23921, 25180, 47842, 54137, 95684, 108274, 119605, 216548, 239210, 270685, 478420, 541370, 1028603, 1082740, 2057206, 4114412, 5143015, 10286030, 20572060]

約数ペア:

[(1, 20572060), (2, 10286030), (4, 5143015), (5, 4114412), (10, 2057206), (19, 1082740), (20, 1028603), (38, 541370), (43, 478420), (76, 270685), (86, 239210), (95, 216548), (172, 119605), (190, 108274), (215, 95684), (380, 54137), (430, 47842), (817, 25180), (860, 23921), (1259, 16340), (1634, 12590), (2518, 8170), (3268, 6295), (4085, 5036)]