20128676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^2$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 38278800

約数和(自身を除く): 18150124

約数列:

[1, 2, 4, 19, 38, 59, 67, 76, 118, 134, 236, 268, 1121, 1273, 2242, 2546, 3953, 4484, 4489, 5092, 7906, 8978, 15812, 17956, 75107, 85291, 150214, 170582, 264851, 300428, 341164, 529702, 1059404, 5032169, 10064338, 20128676]

約数ペア:

[(1, 20128676), (2, 10064338), (4, 5032169), (19, 1059404), (38, 529702), (59, 341164), (67, 300428), (76, 264851), (118, 170582), (134, 150214), (236, 85291), (268, 75107), (1121, 17956), (1273, 15812), (2242, 8978), (2546, 7906), (3953, 5092), (4484, 4489)]