20154500

素因数分解:

$2^2\times 5^3\times {\mathrm{173}}^1\times {\mathrm{233}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 44461872

約数和(自身を除く): 24307372

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 173, 233, 250, 346, 466, 500, 692, 865, 932, 1165, 1730, 2330, 3460, 4325, 4660, 5825, 8650, 11650, 17300, 21625, 23300, 29125, 40309, 43250, 58250, 80618, 86500, 116500, 161236, 201545, 403090, 806180, 1007725, 2015450, 4030900, 5038625, 10077250, 20154500]

約数ペア:

[(1, 20154500), (2, 10077250), (4, 5038625), (5, 4030900), (10, 2015450), (20, 1007725), (25, 806180), (50, 403090), (100, 201545), (125, 161236), (173, 116500), (233, 86500), (250, 80618), (346, 58250), (466, 43250), (500, 40309), (692, 29125), (865, 23300), (932, 21625), (1165, 17300), (1730, 11650), (2330, 8650), (3460, 5825), (4325, 4660)]