8704840

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{809}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 19683000

約数和(自身を除く): 10978160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 809, 1076, 1345, 1618, 2152, 2690, 3236, 4045, 5380, 6472, 8090, 10760, 16180, 32360, 217621, 435242, 870484, 1088105, 1740968, 2176210, 4352420, 8704840]

約数ペア:

[(1, 8704840), (2, 4352420), (4, 2176210), (5, 1740968), (8, 1088105), (10, 870484), (20, 435242), (40, 217621), (269, 32360), (538, 16180), (809, 10760), (1076, 8090), (1345, 6472), (1618, 5380), (2152, 4045), (2690, 3236)]