12907240

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1447}}^1$

素因数の和:1681

約数の個数: 32

約数和(自身を含む): 29191680

約数和(自身を除く): 16284440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1447, 1784, 2230, 2894, 4460, 5788, 7235, 8920, 11576, 14470, 28940, 57880, 322681, 645362, 1290724, 1613405, 2581448, 3226810, 6453620, 12907240]

約数ペア:

[(1, 12907240), (2, 6453620), (4, 3226810), (5, 2581448), (8, 1613405), (10, 1290724), (20, 645362), (40, 322681), (223, 57880), (446, 28940), (892, 14470), (1115, 11576), (1447, 8920), (1784, 7235), (2230, 5788), (2894, 4460)]