489144440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{947}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 1134756000

約数和(自身を除く): 645611560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 349, 370, 698, 740, 947, 1396, 1480, 1745, 1894, 2792, 3490, 3788, 4735, 6980, 7576, 9470, 12913, 13960, 18940, 25826, 35039, 37880, 51652, 64565, 70078, 103304, 129130, 140156, 175195, 258260, 280312, 330503, 350390, 516520, 661006, 700780, 1322012, 1401560, 1652515, 2644024, 3305030, 6610060, 12228611, 13220120, 24457222, 48914444, 61143055, 97828888, 122286110, 244572220, 489144440]

約数ペア:

[(1, 489144440), (2, 244572220), (4, 122286110), (5, 97828888), (8, 61143055), (10, 48914444), (20, 24457222), (37, 13220120), (40, 12228611), (74, 6610060), (148, 3305030), (185, 2644024), (296, 1652515), (349, 1401560), (370, 1322012), (698, 700780), (740, 661006), (947, 516520), (1396, 350390), (1480, 330503), (1745, 280312), (1894, 258260), (2792, 175195), (3490, 140156), (3788, 129130), (4735, 103304), (6980, 70078), (7576, 64565), (9470, 51652), (12913, 37880), (13960, 35039), (18940, 25826)]