18101710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 36799920

約数和(自身を除く): 18698210

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 89, 110, 178, 215, 430, 445, 473, 890, 946, 979, 1849, 1958, 2365, 3698, 3827, 4730, 4895, 7654, 9245, 9790, 18490, 19135, 20339, 38270, 40678, 42097, 84194, 101695, 164561, 203390, 210485, 329122, 420970, 822805, 1645610, 1810171, 3620342, 9050855, 18101710]

約数ペア:

[(1, 18101710), (2, 9050855), (5, 3620342), (10, 1810171), (11, 1645610), (22, 822805), (43, 420970), (55, 329122), (86, 210485), (89, 203390), (110, 164561), (178, 101695), (215, 84194), (430, 42097), (445, 40678), (473, 38270), (890, 20339), (946, 19135), (979, 18490), (1849, 9790), (1958, 9245), (2365, 7654), (3698, 4895), (3827, 4730)]