20176757320

素因数分解:

$2^3\times 5^1\times {\mathrm{111919}}^1\times {\mathrm{4507}}^1$

素因数の和:116437

約数の個数: 32

約数和(自身を含む): 45408182400

約数和(自身を除く): 25231425080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4507, 9014, 18028, 22535, 36056, 45070, 90140, 111919, 180280, 223838, 447676, 559595, 895352, 1119190, 2238380, 4476760, 504418933, 1008837866, 2017675732, 2522094665, 4035351464, 5044189330, 10088378660, 20176757320]

約数ペア:

[(1, 20176757320), (2, 10088378660), (4, 5044189330), (5, 4035351464), (8, 2522094665), (10, 2017675732), (20, 1008837866), (40, 504418933), (4507, 4476760), (9014, 2238380), (18028, 1119190), (22535, 895352), (36056, 559595), (45070, 447676), (90140, 223838), (111919, 180280)]