18491380

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1709}}^1$

素因数の和:2259

約数の個数: 24

約数和(自身を含む): 38926440

約数和(自身を除く): 20435060

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1709, 2164, 2705, 3418, 5410, 6836, 8545, 10820, 17090, 34180, 924569, 1849138, 3698276, 4622845, 9245690, 18491380]

約数ペア:

[(1, 18491380), (2, 9245690), (4, 4622845), (5, 3698276), (10, 1849138), (20, 924569), (541, 34180), (1082, 17090), (1709, 10820), (2164, 8545), (2705, 6836), (3418, 5410)]