20672380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54401}}^1$

素因数の和:54429

約数の個数: 24

約数和(自身を含む): 45697680

約数和(自身を除く): 25025300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54401, 108802, 217604, 272005, 544010, 1033619, 1088020, 2067238, 4134476, 5168095, 10336190, 20672380]

約数ペア:

[(1, 20672380), (2, 10336190), (4, 5168095), (5, 4134476), (10, 2067238), (19, 1088020), (20, 1033619), (38, 544010), (76, 272005), (95, 217604), (190, 108802), (380, 54401)]