221277980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{143687}}^1$

素因数の和:143714

約数の個数: 48

約数和(自身を含む): 579350016

約数和(自身を除く): 358072036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 143687, 287374, 574748, 718435, 1005809, 1436870, 1580557, 2011618, 2873740, 3161114, 4023236, 5029045, 6322228, 7902785, 10058090, 11063899, 15805570, 20116180, 22127798, 31611140, 44255596, 55319495, 110638990, 221277980]

約数ペア:

[(1, 221277980), (2, 110638990), (4, 55319495), (5, 44255596), (7, 31611140), (10, 22127798), (11, 20116180), (14, 15805570), (20, 11063899), (22, 10058090), (28, 7902785), (35, 6322228), (44, 5029045), (55, 4023236), (70, 3161114), (77, 2873740), (110, 2011618), (140, 1580557), (154, 1436870), (220, 1005809), (308, 718435), (385, 574748), (770, 287374), (1540, 143687)]