25686680

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1187}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 57950640

約数和(自身を除く): 32263960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 1187, 2164, 2374, 2705, 4328, 4748, 5410, 5935, 9496, 10820, 11870, 21640, 23740, 47480, 642167, 1284334, 2568668, 3210835, 5137336, 6421670, 12843340, 25686680]

約数ペア:

[(1, 25686680), (2, 12843340), (4, 6421670), (5, 5137336), (8, 3210835), (10, 2568668), (20, 1284334), (40, 642167), (541, 47480), (1082, 23740), (1187, 21640), (2164, 11870), (2374, 10820), (2705, 9496), (4328, 5935), (4748, 5410)]