128761040

素因数分解:

$2^4\times 5^1\times {\mathrm{599}}^1\times {\mathrm{2687}}^1$

素因数の和:3299

約数の個数: 40

約数和(自身を含む): 299980800

約数和(自身を除く): 171219760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 599, 1198, 2396, 2687, 2995, 4792, 5374, 5990, 9584, 10748, 11980, 13435, 21496, 23960, 26870, 42992, 47920, 53740, 107480, 214960, 1609513, 3219026, 6438052, 8047565, 12876104, 16095130, 25752208, 32190260, 64380520, 128761040]

約数ペア:

[(1, 128761040), (2, 64380520), (4, 32190260), (5, 25752208), (8, 16095130), (10, 12876104), (16, 8047565), (20, 6438052), (40, 3219026), (80, 1609513), (599, 214960), (1198, 107480), (2396, 53740), (2687, 47920), (2995, 42992), (4792, 26870), (5374, 23960), (5990, 21496), (9584, 13435), (10748, 11980)]