1553860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 4072320

約数和(自身を除く): 2518460

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, 1009, 1540, 2018, 4036, 5045, 7063, 10090, 11099, 14126, 20180, 22198, 28252, 35315, 44396, 55495, 70630, 77693, 110990, 141260, 155386, 221980, 310772, 388465, 776930, 1553860]

約数ペア:

[(1, 1553860), (2, 776930), (4, 388465), (5, 310772), (7, 221980), (10, 155386), (11, 141260), (14, 110990), (20, 77693), (22, 70630), (28, 55495), (35, 44396), (44, 35315), (55, 28252), (70, 22198), (77, 20180), (110, 14126), (140, 11099), (154, 10090), (220, 7063), (308, 5045), (385, 4036), (770, 2018), (1009, 1540)]