178830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{1987}}^1$

素因数の和:2000

約数の個数: 24

約数和(自身を含む): 465192

約数和(自身を除く): 286362

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 1987, 3974, 5961, 9935, 11922, 17883, 19870, 29805, 35766, 59610, 89415, 178830]

約数ペア:

[(1, 178830), (2, 89415), (3, 59610), (5, 35766), (6, 29805), (9, 19870), (10, 17883), (15, 11922), (18, 9935), (30, 5961), (45, 3974), (90, 1987)]