17215880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3557}}^1$

素因数の和:3590

約数の個数: 48

約数和(自身を含む): 42589260

約数和(自身を除く): 25373380

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, 3557, 4840, 7114, 14228, 17785, 28456, 35570, 39127, 71140, 78254, 142280, 156508, 195635, 313016, 391270, 430397, 782540, 860794, 1565080, 1721588, 2151985, 3443176, 4303970, 8607940, 17215880]

約数ペア:

[(1, 17215880), (2, 8607940), (4, 4303970), (5, 3443176), (8, 2151985), (10, 1721588), (11, 1565080), (20, 860794), (22, 782540), (40, 430397), (44, 391270), (55, 313016), (88, 195635), (110, 156508), (121, 142280), (220, 78254), (242, 71140), (440, 39127), (484, 35570), (605, 28456), (968, 17785), (1210, 14228), (2420, 7114), (3557, 4840)]