68790320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 167400000

約数和(自身を除く): 98609680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 149, 199, 232, 290, 298, 398, 464, 580, 596, 745, 796, 995, 1160, 1192, 1490, 1592, 1990, 2320, 2384, 2980, 3184, 3980, 4321, 5771, 5960, 7960, 8642, 11542, 11920, 15920, 17284, 21605, 23084, 28855, 29651, 34568, 43210, 46168, 57710, 59302, 69136, 86420, 92336, 115420, 118604, 148255, 172840, 230840, 237208, 296510, 345680, 461680, 474416, 593020, 859879, 1186040, 1719758, 2372080, 3439516, 4299395, 6879032, 8598790, 13758064, 17197580, 34395160, 68790320]

約数ペア:

[(1, 68790320), (2, 34395160), (4, 17197580), (5, 13758064), (8, 8598790), (10, 6879032), (16, 4299395), (20, 3439516), (29, 2372080), (40, 1719758), (58, 1186040), (80, 859879), (116, 593020), (145, 474416), (149, 461680), (199, 345680), (232, 296510), (290, 237208), (298, 230840), (398, 172840), (464, 148255), (580, 118604), (596, 115420), (745, 92336), (796, 86420), (995, 69136), (1160, 59302), (1192, 57710), (1490, 46168), (1592, 43210), (1990, 34568), (2320, 29651), (2384, 28855), (2980, 23084), (3184, 21605), (3980, 17284), (4321, 15920), (5771, 11920), (5960, 11542), (7960, 8642)]