20942750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{4409}}^1$

素因数の和:4445

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 20334850

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 950, 2375, 4409, 4750, 8818, 22045, 44090, 83771, 110225, 167542, 220450, 418855, 551125, 837710, 1102250, 2094275, 4188550, 10471375, 20942750]

約数ペア:

[(1, 20942750), (2, 10471375), (5, 4188550), (10, 2094275), (19, 1102250), (25, 837710), (38, 551125), (50, 418855), (95, 220450), (125, 167542), (190, 110225), (250, 83771), (475, 44090), (950, 22045), (2375, 8818), (4409, 4750)]