1999180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5261}}^1$

素因数の和:5289

約数の個数: 24

約数和(自身を含む): 4420080

約数和(自身を除く): 2420900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5261, 10522, 21044, 26305, 52610, 99959, 105220, 199918, 399836, 499795, 999590, 1999180]

約数ペア:

[(1, 1999180), (2, 999590), (4, 499795), (5, 399836), (10, 199918), (19, 105220), (20, 99959), (38, 52610), (76, 26305), (95, 21044), (190, 10522), (380, 5261)]