21842240

素因数分解:

$2^6\times 5^1\times 7^3\times {\mathrm{199}}^1$

素因数の和:237

約数の個数: 112

約数和(自身を含む): 60960000

約数和(自身を除く): 39117760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 199, 224, 245, 280, 320, 343, 392, 398, 448, 490, 560, 686, 784, 796, 980, 995, 1120, 1372, 1393, 1568, 1592, 1715, 1960, 1990, 2240, 2744, 2786, 3136, 3184, 3430, 3920, 3980, 5488, 5572, 6368, 6860, 6965, 7840, 7960, 9751, 10976, 11144, 12736, 13720, 13930, 15680, 15920, 19502, 21952, 22288, 27440, 27860, 31840, 39004, 44576, 48755, 54880, 55720, 63680, 68257, 78008, 89152, 97510, 109760, 111440, 136514, 156016, 195020, 222880, 273028, 312032, 341285, 390040, 445760, 546056, 624064, 682570, 780080, 1092112, 1365140, 1560160, 2184224, 2730280, 3120320, 4368448, 5460560, 10921120, 21842240]

約数ペア:

[(1, 21842240), (2, 10921120), (4, 5460560), (5, 4368448), (7, 3120320), (8, 2730280), (10, 2184224), (14, 1560160), (16, 1365140), (20, 1092112), (28, 780080), (32, 682570), (35, 624064), (40, 546056), (49, 445760), (56, 390040), (64, 341285), (70, 312032), (80, 273028), (98, 222880), (112, 195020), (140, 156016), (160, 136514), (196, 111440), (199, 109760), (224, 97510), (245, 89152), (280, 78008), (320, 68257), (343, 63680), (392, 55720), (398, 54880), (448, 48755), (490, 44576), (560, 39004), (686, 31840), (784, 27860), (796, 27440), (980, 22288), (995, 21952), (1120, 19502), (1372, 15920), (1393, 15680), (1568, 13930), (1592, 13720), (1715, 12736), (1960, 11144), (1990, 10976), (2240, 9751), (2744, 7960), (2786, 7840), (3136, 6965), (3184, 6860), (3430, 6368), (3920, 5572), (3980, 5488)]