20305600

素因数分解:

$2^6\times 5^2\times 7^3\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 168

約数和(自身を含む): 59842400

約数和(自身を除く): 39536800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 37, 40, 49, 50, 56, 64, 70, 74, 80, 98, 100, 112, 140, 148, 160, 175, 185, 196, 200, 224, 245, 259, 280, 296, 320, 343, 350, 370, 392, 400, 448, 490, 518, 560, 592, 686, 700, 740, 784, 800, 925, 980, 1036, 1120, 1184, 1225, 1295, 1372, 1400, 1480, 1568, 1600, 1715, 1813, 1850, 1960, 2072, 2240, 2368, 2450, 2590, 2744, 2800, 2960, 3136, 3430, 3626, 3700, 3920, 4144, 4900, 5180, 5488, 5600, 5920, 6475, 6860, 7252, 7400, 7840, 8288, 8575, 9065, 9800, 10360, 10976, 11200, 11840, 12691, 12950, 13720, 14504, 14800, 15680, 16576, 17150, 18130, 19600, 20720, 21952, 25382, 25900, 27440, 29008, 29600, 34300, 36260, 39200, 41440, 45325, 50764, 51800, 54880, 58016, 59200, 63455, 68600, 72520, 78400, 82880, 90650, 101528, 103600, 109760, 116032, 126910, 137200, 145040, 181300, 203056, 207200, 253820, 274400, 290080, 317275, 362600, 406112, 414400, 507640, 548800, 580160, 634550, 725200, 812224, 1015280, 1269100, 1450400, 2030560, 2538200, 2900800, 4061120, 5076400, 10152800, 20305600]

約数ペア:

[(1, 20305600), (2, 10152800), (4, 5076400), (5, 4061120), (7, 2900800), (8, 2538200), (10, 2030560), (14, 1450400), (16, 1269100), (20, 1015280), (25, 812224), (28, 725200), (32, 634550), (35, 580160), (37, 548800), (40, 507640), (49, 414400), (50, 406112), (56, 362600), (64, 317275), (70, 290080), (74, 274400), (80, 253820), (98, 207200), (100, 203056), (112, 181300), (140, 145040), (148, 137200), (160, 126910), (175, 116032), (185, 109760), (196, 103600), (200, 101528), (224, 90650), (245, 82880), (259, 78400), (280, 72520), (296, 68600), (320, 63455), (343, 59200), (350, 58016), (370, 54880), (392, 51800), (400, 50764), (448, 45325), (490, 41440), (518, 39200), (560, 36260), (592, 34300), (686, 29600), (700, 29008), (740, 27440), (784, 25900), (800, 25382), (925, 21952), (980, 20720), (1036, 19600), (1120, 18130), (1184, 17150), (1225, 16576), (1295, 15680), (1372, 14800), (1400, 14504), (1480, 13720), (1568, 12950), (1600, 12691), (1715, 11840), (1813, 11200), (1850, 10976), (1960, 10360), (2072, 9800), (2240, 9065), (2368, 8575), (2450, 8288), (2590, 7840), (2744, 7400), (2800, 7252), (2960, 6860), (3136, 6475), (3430, 5920), (3626, 5600), (3700, 5488), (3920, 5180), (4144, 4900)]