18935920

素因数分解:

$2^4\times 5^1\times {\mathrm{236699}}^1$

素因数の和:236712

約数の個数: 20

約数和(自身を含む): 44026200

約数和(自身を除く): 25090280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236699, 473398, 946796, 1183495, 1893592, 2366990, 3787184, 4733980, 9467960, 18935920]

約数ペア:

[(1, 18935920), (2, 9467960), (4, 4733980), (5, 3787184), (8, 2366990), (10, 1893592), (16, 1183495), (20, 946796), (40, 473398), (80, 236699)]