66561520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 80

約数和(自身を含む): 161150400

約数和(自身を除く): 94588880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 113, 148, 185, 199, 226, 296, 370, 398, 452, 565, 592, 740, 796, 904, 995, 1130, 1480, 1592, 1808, 1990, 2260, 2960, 3184, 3980, 4181, 4520, 7363, 7960, 8362, 9040, 14726, 15920, 16724, 20905, 22487, 29452, 33448, 36815, 41810, 44974, 58904, 66896, 73630, 83620, 89948, 112435, 117808, 147260, 167240, 179896, 224870, 294520, 334480, 359792, 449740, 589040, 832019, 899480, 1664038, 1798960, 3328076, 4160095, 6656152, 8320190, 13312304, 16640380, 33280760, 66561520]

約数ペア:

[(1, 66561520), (2, 33280760), (4, 16640380), (5, 13312304), (8, 8320190), (10, 6656152), (16, 4160095), (20, 3328076), (37, 1798960), (40, 1664038), (74, 899480), (80, 832019), (113, 589040), (148, 449740), (185, 359792), (199, 334480), (226, 294520), (296, 224870), (370, 179896), (398, 167240), (452, 147260), (565, 117808), (592, 112435), (740, 89948), (796, 83620), (904, 73630), (995, 66896), (1130, 58904), (1480, 44974), (1592, 41810), (1808, 36815), (1990, 33448), (2260, 29452), (2960, 22487), (3184, 20905), (3980, 16724), (4181, 15920), (4520, 14726), (7363, 9040), (7960, 8362)]