28141720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{14969}}^1$

素因数の和:15027

約数の個数: 32

約数和(自身を含む): 64670400

約数和(自身を除く): 36528680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 14969, 29938, 59876, 74845, 119752, 149690, 299380, 598760, 703543, 1407086, 2814172, 3517715, 5628344, 7035430, 14070860, 28141720]

約数ペア:

[(1, 28141720), (2, 14070860), (4, 7035430), (5, 5628344), (8, 3517715), (10, 2814172), (20, 1407086), (40, 703543), (47, 598760), (94, 299380), (188, 149690), (235, 119752), (376, 74845), (470, 59876), (940, 29938), (1880, 14969)]