20228080

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8719}}^1$

素因数の和:8761

約数の個数: 40

約数和(自身を含む): 48657600

約数和(自身を除く): 28429520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8719, 17438, 34876, 43595, 69752, 87190, 139504, 174380, 252851, 348760, 505702, 697520, 1011404, 1264255, 2022808, 2528510, 4045616, 5057020, 10114040, 20228080]

約数ペア:

[(1, 20228080), (2, 10114040), (4, 5057020), (5, 4045616), (8, 2528510), (10, 2022808), (16, 1264255), (20, 1011404), (29, 697520), (40, 505702), (58, 348760), (80, 252851), (116, 174380), (145, 139504), (232, 87190), (290, 69752), (464, 43595), (580, 34876), (1160, 17438), (2320, 8719)]