18039220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{10867}}^1$

素因数の和:10959

約数の個数: 24

約数和(自身を含む): 38342304

約数和(自身を除く): 20303084

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 10867, 21734, 43468, 54335, 108670, 217340, 901961, 1803922, 3607844, 4509805, 9019610, 18039220]

約数ペア:

[(1, 18039220), (2, 9019610), (4, 4509805), (5, 3607844), (10, 1803922), (20, 901961), (83, 217340), (166, 108670), (332, 54335), (415, 43468), (830, 21734), (1660, 10867)]