80437520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:472

約数の個数: 80

約数和(自身を含む): 194779200

約数和(自身を除く): 114341680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 67, 80, 86, 134, 172, 215, 268, 335, 344, 349, 430, 536, 670, 688, 698, 860, 1072, 1340, 1396, 1720, 1745, 2680, 2792, 2881, 3440, 3490, 5360, 5584, 5762, 6980, 11524, 13960, 14405, 15007, 23048, 23383, 27920, 28810, 30014, 46096, 46766, 57620, 60028, 75035, 93532, 115240, 116915, 120056, 150070, 187064, 230480, 233830, 240112, 300140, 374128, 467660, 600280, 935320, 1005469, 1200560, 1870640, 2010938, 4021876, 5027345, 8043752, 10054690, 16087504, 20109380, 40218760, 80437520]

約数ペア:

[(1, 80437520), (2, 40218760), (4, 20109380), (5, 16087504), (8, 10054690), (10, 8043752), (16, 5027345), (20, 4021876), (40, 2010938), (43, 1870640), (67, 1200560), (80, 1005469), (86, 935320), (134, 600280), (172, 467660), (215, 374128), (268, 300140), (335, 240112), (344, 233830), (349, 230480), (430, 187064), (536, 150070), (670, 120056), (688, 116915), (698, 115240), (860, 93532), (1072, 75035), (1340, 60028), (1396, 57620), (1720, 46766), (1745, 46096), (2680, 30014), (2792, 28810), (2881, 27920), (3440, 23383), (3490, 23048), (5360, 15007), (5584, 14405), (5762, 13960), (6980, 11524)]