1987856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 4374720

約数和(自身を除く): 2386864

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 503, 988, 1006, 1976, 2012, 3952, 4024, 6539, 8048, 9557, 13078, 19114, 26156, 38228, 52312, 76456, 104624, 124241, 152912, 248482, 496964, 993928, 1987856]

約数ペア:

[(1, 1987856), (2, 993928), (4, 496964), (8, 248482), (13, 152912), (16, 124241), (19, 104624), (26, 76456), (38, 52312), (52, 38228), (76, 26156), (104, 19114), (152, 13078), (208, 9557), (247, 8048), (304, 6539), (494, 4024), (503, 3952), (988, 2012), (1006, 1976)]