28115800

素因数分解:

$2^3\times 5^2\times {\mathrm{257}}^1\times {\mathrm{547}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 65743560

約数和(自身を除く): 37627760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 257, 514, 547, 1028, 1094, 1285, 2056, 2188, 2570, 2735, 4376, 5140, 5470, 6425, 10280, 10940, 12850, 13675, 21880, 25700, 27350, 51400, 54700, 109400, 140579, 281158, 562316, 702895, 1124632, 1405790, 2811580, 3514475, 5623160, 7028950, 14057900, 28115800]

約数ペア:

[(1, 28115800), (2, 14057900), (4, 7028950), (5, 5623160), (8, 3514475), (10, 2811580), (20, 1405790), (25, 1124632), (40, 702895), (50, 562316), (100, 281158), (200, 140579), (257, 109400), (514, 54700), (547, 51400), (1028, 27350), (1094, 25700), (1285, 21880), (2056, 13675), (2188, 12850), (2570, 10940), (2735, 10280), (4376, 6425), (5140, 5470)]