18589240

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3119}}^1$

素因数の和:3279

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 23530760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3119, 5960, 6238, 12476, 15595, 24952, 31190, 62380, 124760, 464731, 929462, 1858924, 2323655, 3717848, 4647310, 9294620, 18589240]

約数ペア:

[(1, 18589240), (2, 9294620), (4, 4647310), (5, 3717848), (8, 2323655), (10, 1858924), (20, 929462), (40, 464731), (149, 124760), (298, 62380), (596, 31190), (745, 24952), (1192, 15595), (1490, 12476), (2980, 6238), (3119, 5960)]