78800080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22907}}^1$

素因数の和:22963

約数の個数: 40

約数和(自身を含む): 187479072

約数和(自身を除く): 108678992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 22907, 45814, 91628, 114535, 183256, 229070, 366512, 458140, 916280, 985001, 1832560, 1970002, 3940004, 4925005, 7880008, 9850010, 15760016, 19700020, 39400040, 78800080]

約数ペア:

[(1, 78800080), (2, 39400040), (4, 19700020), (5, 15760016), (8, 9850010), (10, 7880008), (16, 4925005), (20, 3940004), (40, 1970002), (43, 1832560), (80, 985001), (86, 916280), (172, 458140), (215, 366512), (344, 229070), (430, 183256), (688, 114535), (860, 91628), (1720, 45814), (3440, 22907)]