20202560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:364

約数の個数: 112

約数和(自身を含む): 57058560

約数和(自身を除く): 36856000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 311, 320, 406, 448, 464, 560, 580, 622, 812, 928, 1015, 1120, 1160, 1244, 1555, 1624, 1856, 2030, 2177, 2240, 2320, 2488, 3110, 3248, 4060, 4354, 4640, 4976, 6220, 6496, 8120, 8708, 9019, 9280, 9952, 10885, 12440, 12992, 16240, 17416, 18038, 19904, 21770, 24880, 32480, 34832, 36076, 43540, 45095, 49760, 63133, 64960, 69664, 72152, 87080, 90190, 99520, 126266, 139328, 144304, 174160, 180380, 252532, 288608, 315665, 348320, 360760, 505064, 577216, 631330, 696640, 721520, 1010128, 1262660, 1443040, 2020256, 2525320, 2886080, 4040512, 5050640, 10101280, 20202560]

約数ペア:

[(1, 20202560), (2, 10101280), (4, 5050640), (5, 4040512), (7, 2886080), (8, 2525320), (10, 2020256), (14, 1443040), (16, 1262660), (20, 1010128), (28, 721520), (29, 696640), (32, 631330), (35, 577216), (40, 505064), (56, 360760), (58, 348320), (64, 315665), (70, 288608), (80, 252532), (112, 180380), (116, 174160), (140, 144304), (145, 139328), (160, 126266), (203, 99520), (224, 90190), (232, 87080), (280, 72152), (290, 69664), (311, 64960), (320, 63133), (406, 49760), (448, 45095), (464, 43540), (560, 36076), (580, 34832), (622, 32480), (812, 24880), (928, 21770), (1015, 19904), (1120, 18038), (1160, 17416), (1244, 16240), (1555, 12992), (1624, 12440), (1856, 10885), (2030, 9952), (2177, 9280), (2240, 9019), (2320, 8708), (2488, 8120), (3110, 6496), (3248, 6220), (4060, 4976), (4354, 4640)]