28589320

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2657}}^1$

素因数の和:2937

約数の個数: 32

約数和(自身を含む): 64589400

約数和(自身を除く): 36000080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2657, 2690, 5314, 5380, 10628, 10760, 13285, 21256, 26570, 53140, 106280, 714733, 1429466, 2858932, 3573665, 5717864, 7147330, 14294660, 28589320]

約数ペア:

[(1, 28589320), (2, 14294660), (4, 7147330), (5, 5717864), (8, 3573665), (10, 2858932), (20, 1429466), (40, 714733), (269, 106280), (538, 53140), (1076, 26570), (1345, 21256), (2152, 13285), (2657, 10760), (2690, 10628), (5314, 5380)]