28407740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{643}}^1$

素因数の和:746

約数の個数: 36

約数和(自身を含む): 61047336

約数和(自身を除く): 32639596

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 643, 940, 1286, 2209, 2572, 3215, 4418, 6430, 8836, 11045, 12860, 22090, 30221, 44180, 60442, 120884, 151105, 302210, 604420, 1420387, 2840774, 5681548, 7101935, 14203870, 28407740]

約数ペア:

[(1, 28407740), (2, 14203870), (4, 7101935), (5, 5681548), (10, 2840774), (20, 1420387), (47, 604420), (94, 302210), (188, 151105), (235, 120884), (470, 60442), (643, 44180), (940, 30221), (1286, 22090), (2209, 12860), (2572, 11045), (3215, 8836), (4418, 6430)]