28072840

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{2609}}^1$

素因数の和:2889

約数の個数: 32

約数和(自身を含む): 63423000

約数和(自身を除く): 35350160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2609, 2690, 5218, 5380, 10436, 10760, 13045, 20872, 26090, 52180, 104360, 701821, 1403642, 2807284, 3509105, 5614568, 7018210, 14036420, 28072840]

約数ペア:

[(1, 28072840), (2, 14036420), (4, 7018210), (5, 5614568), (8, 3509105), (10, 2807284), (20, 1403642), (40, 701821), (269, 104360), (538, 52180), (1076, 26090), (1345, 20872), (2152, 13045), (2609, 10760), (2690, 10436), (5218, 5380)]