2557940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 6792576

約数和(自身を除く): 4234636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 151, 154, 220, 242, 302, 308, 385, 484, 604, 605, 755, 770, 847, 1057, 1210, 1510, 1540, 1661, 1694, 2114, 2420, 3020, 3322, 3388, 4228, 4235, 5285, 6644, 8305, 8470, 10570, 11627, 16610, 16940, 18271, 21140, 23254, 33220, 36542, 46508, 58135, 73084, 91355, 116270, 127897, 182710, 232540, 255794, 365420, 511588, 639485, 1278970, 2557940]

約数ペア:

[(1, 2557940), (2, 1278970), (4, 639485), (5, 511588), (7, 365420), (10, 255794), (11, 232540), (14, 182710), (20, 127897), (22, 116270), (28, 91355), (35, 73084), (44, 58135), (55, 46508), (70, 36542), (77, 33220), (110, 23254), (121, 21140), (140, 18271), (151, 16940), (154, 16610), (220, 11627), (242, 10570), (302, 8470), (308, 8305), (385, 6644), (484, 5285), (604, 4235), (605, 4228), (755, 3388), (770, 3322), (847, 3020), (1057, 2420), (1210, 2114), (1510, 1694), (1540, 1661)]