20735528

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 44177280

約数和(自身を除く): 23441752

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 121, 124, 242, 248, 341, 484, 682, 691, 968, 1364, 1382, 2728, 2764, 3751, 5528, 7502, 7601, 15004, 15202, 21421, 30008, 30404, 42842, 60808, 83611, 85684, 167222, 171368, 235631, 334444, 471262, 668888, 942524, 1885048, 2591941, 5183882, 10367764, 20735528]

約数ペア:

[(1, 20735528), (2, 10367764), (4, 5183882), (8, 2591941), (11, 1885048), (22, 942524), (31, 668888), (44, 471262), (62, 334444), (88, 235631), (121, 171368), (124, 167222), (242, 85684), (248, 83611), (341, 60808), (484, 42842), (682, 30404), (691, 30008), (968, 21421), (1364, 15202), (1382, 15004), (2728, 7601), (2764, 7502), (3751, 5528)]