490160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 1245456

約数和(自身を除く): 755296

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 557, 880, 1114, 2228, 2785, 4456, 5570, 6127, 8912, 11140, 12254, 22280, 24508, 30635, 44560, 49016, 61270, 98032, 122540, 245080, 490160]

約数ペア:

[(1, 490160), (2, 245080), (4, 122540), (5, 98032), (8, 61270), (10, 49016), (11, 44560), (16, 30635), (20, 24508), (22, 22280), (40, 12254), (44, 11140), (55, 8912), (80, 6127), (88, 5570), (110, 4456), (176, 2785), (220, 2228), (440, 1114), (557, 880)]