28135725

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{10139}}^1$

素因数の和:10189

約数の個数: 24

約数和(自身を含む): 47779680

約数和(自身を除く): 19643955

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 10139, 30417, 50695, 152085, 253475, 375143, 760425, 1125429, 1875715, 5627145, 9378575, 28135725]

約数ペア:

[(1, 28135725), (3, 9378575), (5, 5627145), (15, 1875715), (25, 1125429), (37, 760425), (75, 375143), (111, 253475), (185, 152085), (555, 50695), (925, 30417), (2775, 10139)]