7781740

素因数分解:

$2^2\times 5^1\times {\mathrm{607}}^1\times {\mathrm{641}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 16394112

約数和(自身を除く): 8612372

約数列:

[1, 2, 4, 5, 10, 20, 607, 641, 1214, 1282, 2428, 2564, 3035, 3205, 6070, 6410, 12140, 12820, 389087, 778174, 1556348, 1945435, 3890870, 7781740]

約数ペア:

[(1, 7781740), (2, 3890870), (4, 1945435), (5, 1556348), (10, 778174), (20, 389087), (607, 12820), (641, 12140), (1214, 6410), (1282, 6070), (2428, 3205), (2564, 3035)]