128278250

素因数分解:

$2^1\times 5^3\times {\mathrm{263}}^1\times {\mathrm{1951}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 241173504

約数和(自身を除く): 112895254

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 263, 526, 1315, 1951, 2630, 3902, 6575, 9755, 13150, 19510, 32875, 48775, 65750, 97550, 243875, 487750, 513113, 1026226, 2565565, 5131130, 12827825, 25655650, 64139125, 128278250]

約数ペア:

[(1, 128278250), (2, 64139125), (5, 25655650), (10, 12827825), (25, 5131130), (50, 2565565), (125, 1026226), (250, 513113), (263, 487750), (526, 243875), (1315, 97550), (1951, 65750), (2630, 48775), (3902, 32875), (6575, 19510), (9755, 13150)]