40938280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 95760000

約数和(自身を除く): 54821720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 139, 148, 185, 199, 278, 296, 370, 398, 556, 695, 740, 796, 995, 1112, 1390, 1480, 1592, 1990, 2780, 3980, 5143, 5560, 7363, 7960, 10286, 14726, 20572, 25715, 27661, 29452, 36815, 41144, 51430, 55322, 58904, 73630, 102860, 110644, 138305, 147260, 205720, 221288, 276610, 294520, 553220, 1023457, 1106440, 2046914, 4093828, 5117285, 8187656, 10234570, 20469140, 40938280]

約数ペア:

[(1, 40938280), (2, 20469140), (4, 10234570), (5, 8187656), (8, 5117285), (10, 4093828), (20, 2046914), (37, 1106440), (40, 1023457), (74, 553220), (139, 294520), (148, 276610), (185, 221288), (199, 205720), (278, 147260), (296, 138305), (370, 110644), (398, 102860), (556, 73630), (695, 58904), (740, 55322), (796, 51430), (995, 41144), (1112, 36815), (1390, 29452), (1480, 27661), (1592, 25715), (1990, 20572), (2780, 14726), (3980, 10286), (5143, 7960), (5560, 7363)]