19210480

素因数分解:

$2^4\times 5^1\times {\mathrm{240131}}^1$

素因数の和:240144

約数の個数: 20

約数和(自身を含む): 44664552

約数和(自身を除く): 25454072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240131, 480262, 960524, 1200655, 1921048, 2401310, 3842096, 4802620, 9605240, 19210480]

約数ペア:

[(1, 19210480), (2, 9605240), (4, 4802620), (5, 3842096), (8, 2401310), (10, 1921048), (16, 1200655), (20, 960524), (40, 480262), (80, 240131)]