79989620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{210499}}^1$

素因数の和:210527

約数の個数: 24

約数和(自身を含む): 176820000

約数和(自身を除く): 96830380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 210499, 420998, 841996, 1052495, 2104990, 3999481, 4209980, 7998962, 15997924, 19997405, 39994810, 79989620]

約数ペア:

[(1, 79989620), (2, 39994810), (4, 19997405), (5, 15997924), (10, 7998962), (19, 4209980), (20, 3999481), (38, 2104990), (76, 1052495), (95, 841996), (190, 420998), (380, 210499)]