13012640

素因数分解:

$2^5\times 5^1\times {\mathrm{167}}^1\times {\mathrm{487}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 30989952

約数和(自身を除く): 17977312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 487, 668, 835, 974, 1336, 1670, 1948, 2435, 2672, 3340, 3896, 4870, 5344, 6680, 7792, 9740, 13360, 15584, 19480, 26720, 38960, 77920, 81329, 162658, 325316, 406645, 650632, 813290, 1301264, 1626580, 2602528, 3253160, 6506320, 13012640]

約数ペア:

[(1, 13012640), (2, 6506320), (4, 3253160), (5, 2602528), (8, 1626580), (10, 1301264), (16, 813290), (20, 650632), (32, 406645), (40, 325316), (80, 162658), (160, 81329), (167, 77920), (334, 38960), (487, 26720), (668, 19480), (835, 15584), (974, 13360), (1336, 9740), (1670, 7792), (1948, 6680), (2435, 5344), (2672, 4870), (3340, 3896)]