40988168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20743}}^1$

素因数の和:20781

約数の個数: 32

約数和(自身を含む): 87124800

約数和(自身を除く): 46136632

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 20743, 41486, 82972, 165944, 269659, 394117, 539318, 788234, 1078636, 1576468, 2157272, 3152936, 5123521, 10247042, 20494084, 40988168]

約数ペア:

[(1, 40988168), (2, 20494084), (4, 10247042), (8, 5123521), (13, 3152936), (19, 2157272), (26, 1576468), (38, 1078636), (52, 788234), (76, 539318), (104, 394117), (152, 269659), (247, 165944), (494, 82972), (988, 41486), (1976, 20743)]