51430000

素因数分解:

$2^4\times 5^4\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 100

約数和(自身を含む): 128802520

約数和(自身を除く): 77372520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 74, 80, 100, 125, 139, 148, 185, 200, 250, 278, 296, 370, 400, 500, 556, 592, 625, 695, 740, 925, 1000, 1112, 1250, 1390, 1480, 1850, 2000, 2224, 2500, 2780, 2960, 3475, 3700, 4625, 5000, 5143, 5560, 6950, 7400, 9250, 10000, 10286, 11120, 13900, 14800, 17375, 18500, 20572, 23125, 25715, 27800, 34750, 37000, 41144, 46250, 51430, 55600, 69500, 74000, 82288, 86875, 92500, 102860, 128575, 139000, 173750, 185000, 205720, 257150, 278000, 347500, 370000, 411440, 514300, 642875, 695000, 1028600, 1285750, 1390000, 2057200, 2571500, 3214375, 5143000, 6428750, 10286000, 12857500, 25715000, 51430000]

約数ペア:

[(1, 51430000), (2, 25715000), (4, 12857500), (5, 10286000), (8, 6428750), (10, 5143000), (16, 3214375), (20, 2571500), (25, 2057200), (37, 1390000), (40, 1285750), (50, 1028600), (74, 695000), (80, 642875), (100, 514300), (125, 411440), (139, 370000), (148, 347500), (185, 278000), (200, 257150), (250, 205720), (278, 185000), (296, 173750), (370, 139000), (400, 128575), (500, 102860), (556, 92500), (592, 86875), (625, 82288), (695, 74000), (740, 69500), (925, 55600), (1000, 51430), (1112, 46250), (1250, 41144), (1390, 37000), (1480, 34750), (1850, 27800), (2000, 25715), (2224, 23125), (2500, 20572), (2780, 18500), (2960, 17375), (3475, 14800), (3700, 13900), (4625, 11120), (5000, 10286), (5143, 10000), (5560, 9250), (6950, 7400)]