84789620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{71}}^2$

素因数の和:209

約数の個数: 54

約数和(自身を含む): 187043766

約数和(自身を除く): 102254146

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 841, 1420, 1682, 2059, 3364, 4118, 4205, 5041, 8236, 8410, 10082, 10295, 16820, 20164, 20590, 25205, 41180, 50410, 59711, 100820, 119422, 146189, 238844, 292378, 298555, 584756, 597110, 730945, 1194220, 1461890, 2923780, 4239481, 8478962, 16957924, 21197405, 42394810, 84789620]

約数ペア:

[(1, 84789620), (2, 42394810), (4, 21197405), (5, 16957924), (10, 8478962), (20, 4239481), (29, 2923780), (58, 1461890), (71, 1194220), (116, 730945), (142, 597110), (145, 584756), (284, 298555), (290, 292378), (355, 238844), (580, 146189), (710, 119422), (841, 100820), (1420, 59711), (1682, 50410), (2059, 41180), (3364, 25205), (4118, 20590), (4205, 20164), (5041, 16820), (8236, 10295), (8410, 10082)]