80142380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{210901}}^1$

素因数の和:210929

約数の個数: 24

約数和(自身を含む): 177157680

約数和(自身を除く): 97015300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 210901, 421802, 843604, 1054505, 2109010, 4007119, 4218020, 8014238, 16028476, 20035595, 40071190, 80142380]

約数ペア:

[(1, 80142380), (2, 40071190), (4, 20035595), (5, 16028476), (10, 8014238), (19, 4218020), (20, 4007119), (38, 2109010), (76, 1054505), (95, 843604), (190, 421802), (380, 210901)]