25155160

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2447}}^1$

素因数の和:2715

約数の個数: 32

約数和(自身を含む): 56842560

約数和(自身を除く): 31687400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2447, 2570, 4894, 5140, 9788, 10280, 12235, 19576, 24470, 48940, 97880, 628879, 1257758, 2515516, 3144395, 5031032, 6288790, 12577580, 25155160]

約数ペア:

[(1, 25155160), (2, 12577580), (4, 6288790), (5, 5031032), (8, 3144395), (10, 2515516), (20, 1257758), (40, 628879), (257, 97880), (514, 48940), (1028, 24470), (1285, 19576), (2056, 12235), (2447, 10280), (2570, 9788), (4894, 5140)]