18489320

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6899}}^1$

素因数の和:6977

約数の個数: 32

約数和(自身を含む): 42228000

約数和(自身を除く): 23738680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6899, 13798, 27596, 34495, 55192, 68990, 137980, 275960, 462233, 924466, 1848932, 2311165, 3697864, 4622330, 9244660, 18489320]

約数ペア:

[(1, 18489320), (2, 9244660), (4, 4622330), (5, 3697864), (8, 2311165), (10, 1848932), (20, 924466), (40, 462233), (67, 275960), (134, 137980), (268, 68990), (335, 55192), (536, 34495), (670, 27596), (1340, 13798), (2680, 6899)]