12947920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5581}}^1$

素因数の和:5623

約数の個数: 40

約数和(自身を含む): 31147560

約数和(自身を除く): 18199640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 5581, 11162, 22324, 27905, 44648, 55810, 89296, 111620, 161849, 223240, 323698, 446480, 647396, 809245, 1294792, 1618490, 2589584, 3236980, 6473960, 12947920]

約数ペア:

[(1, 12947920), (2, 6473960), (4, 3236980), (5, 2589584), (8, 1618490), (10, 1294792), (16, 809245), (20, 647396), (29, 446480), (40, 323698), (58, 223240), (80, 161849), (116, 111620), (145, 89296), (232, 55810), (290, 44648), (464, 27905), (580, 22324), (1160, 11162), (2320, 5581)]