20361880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{601}}^1$

素因数の和:641

約数の個数: 96

約数和(自身を含む): 57647520

約数和(自身を除く): 37285640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 601, 605, 616, 770, 847, 968, 1202, 1210, 1540, 1694, 2404, 2420, 3005, 3080, 3388, 4207, 4235, 4808, 4840, 6010, 6611, 6776, 8414, 8470, 12020, 13222, 16828, 16940, 21035, 24040, 26444, 33055, 33656, 33880, 42070, 46277, 52888, 66110, 72721, 84140, 92554, 132220, 145442, 168280, 185108, 231385, 264440, 290884, 363605, 370216, 462770, 509047, 581768, 727210, 925540, 1018094, 1454420, 1851080, 2036188, 2545235, 2908840, 4072376, 5090470, 10180940, 20361880]

約数ペア:

[(1, 20361880), (2, 10180940), (4, 5090470), (5, 4072376), (7, 2908840), (8, 2545235), (10, 2036188), (11, 1851080), (14, 1454420), (20, 1018094), (22, 925540), (28, 727210), (35, 581768), (40, 509047), (44, 462770), (55, 370216), (56, 363605), (70, 290884), (77, 264440), (88, 231385), (110, 185108), (121, 168280), (140, 145442), (154, 132220), (220, 92554), (242, 84140), (280, 72721), (308, 66110), (385, 52888), (440, 46277), (484, 42070), (601, 33880), (605, 33656), (616, 33055), (770, 26444), (847, 24040), (968, 21035), (1202, 16940), (1210, 16828), (1540, 13222), (1694, 12020), (2404, 8470), (2420, 8414), (3005, 6776), (3080, 6611), (3388, 6010), (4207, 4840), (4235, 4808)]