12704540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{499}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 28560000

約数和(自身を除く): 15855460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 499, 670, 998, 1273, 1340, 1996, 2495, 2546, 4990, 5092, 6365, 9481, 9980, 12730, 18962, 25460, 33433, 37924, 47405, 66866, 94810, 133732, 167165, 189620, 334330, 635227, 668660, 1270454, 2540908, 3176135, 6352270, 12704540]

約数ペア:

[(1, 12704540), (2, 6352270), (4, 3176135), (5, 2540908), (10, 1270454), (19, 668660), (20, 635227), (38, 334330), (67, 189620), (76, 167165), (95, 133732), (134, 94810), (190, 66866), (268, 47405), (335, 37924), (380, 33433), (499, 25460), (670, 18962), (998, 12730), (1273, 9980), (1340, 9481), (1996, 6365), (2495, 5092), (2546, 4990)]