2688895880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{555557}}^1$

素因数の和:555590

約数の個数: 48

約数和(自身を含む): 6650029260

約数和(自身を除く): 3961133380

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 555557, 1111114, 2222228, 2777785, 4444456, 5555570, 6111127, 11111140, 12222254, 22222280, 24444508, 30555635, 48889016, 61111270, 67222397, 122222540, 134444794, 244445080, 268889588, 336111985, 537779176, 672223970, 1344447940, 2688895880]

約数ペア:

[(1, 2688895880), (2, 1344447940), (4, 672223970), (5, 537779176), (8, 336111985), (10, 268889588), (11, 244445080), (20, 134444794), (22, 122222540), (40, 67222397), (44, 61111270), (55, 48889016), (88, 30555635), (110, 24444508), (121, 22222280), (220, 12222254), (242, 11111140), (440, 6111127), (484, 5555570), (605, 4444456), (968, 2777785), (1210, 2222228), (2420, 1111114), (4840, 555557)]