18636320

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{433}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 44294040

約数和(自身を除く): 25657720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 433, 538, 866, 1076, 1345, 1732, 2152, 2165, 2690, 3464, 4304, 4330, 5380, 6928, 8608, 8660, 10760, 13856, 17320, 21520, 34640, 43040, 69280, 116477, 232954, 465908, 582385, 931816, 1164770, 1863632, 2329540, 3727264, 4659080, 9318160, 18636320]

約数ペア:

[(1, 18636320), (2, 9318160), (4, 4659080), (5, 3727264), (8, 2329540), (10, 1863632), (16, 1164770), (20, 931816), (32, 582385), (40, 465908), (80, 232954), (160, 116477), (269, 69280), (433, 43040), (538, 34640), (866, 21520), (1076, 17320), (1345, 13856), (1732, 10760), (2152, 8660), (2165, 8608), (2690, 6928), (3464, 5380), (4304, 4330)]