20216380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53201}}^1$

素因数の和:53229

約数の個数: 24

約数和(自身を含む): 44689680

約数和(自身を除く): 24473300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53201, 106402, 212804, 266005, 532010, 1010819, 1064020, 2021638, 4043276, 5054095, 10108190, 20216380]

約数ペア:

[(1, 20216380), (2, 10108190), (4, 5054095), (5, 4043276), (10, 2021638), (19, 1064020), (20, 1010819), (38, 532010), (76, 266005), (95, 212804), (190, 106402), (380, 53201)]