20572000

素因数分解:

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

素因数の和:201

約数の個数: 96

約数和(自身を含む): 52284960

約数和(自身を除く): 31712960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 74, 80, 100, 125, 139, 148, 160, 185, 200, 250, 278, 296, 370, 400, 500, 556, 592, 695, 740, 800, 925, 1000, 1112, 1184, 1390, 1480, 1850, 2000, 2224, 2780, 2960, 3475, 3700, 4000, 4448, 4625, 5143, 5560, 5920, 6950, 7400, 9250, 10286, 11120, 13900, 14800, 17375, 18500, 20572, 22240, 25715, 27800, 29600, 34750, 37000, 41144, 51430, 55600, 69500, 74000, 82288, 102860, 111200, 128575, 139000, 148000, 164576, 205720, 257150, 278000, 411440, 514300, 556000, 642875, 822880, 1028600, 1285750, 2057200, 2571500, 4114400, 5143000, 10286000, 20572000]

約数ペア:

[(1, 20572000), (2, 10286000), (4, 5143000), (5, 4114400), (8, 2571500), (10, 2057200), (16, 1285750), (20, 1028600), (25, 822880), (32, 642875), (37, 556000), (40, 514300), (50, 411440), (74, 278000), (80, 257150), (100, 205720), (125, 164576), (139, 148000), (148, 139000), (160, 128575), (185, 111200), (200, 102860), (250, 82288), (278, 74000), (296, 69500), (370, 55600), (400, 51430), (500, 41144), (556, 37000), (592, 34750), (695, 29600), (740, 27800), (800, 25715), (925, 22240), (1000, 20572), (1112, 18500), (1184, 17375), (1390, 14800), (1480, 13900), (1850, 11120), (2000, 10286), (2224, 9250), (2780, 7400), (2960, 6950), (3475, 5920), (3700, 5560), (4000, 5143), (4448, 4625)]