26815640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 62868960

約数和(自身を除く): 36053320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 83, 164, 166, 197, 205, 328, 332, 394, 410, 415, 664, 788, 820, 830, 985, 1576, 1640, 1660, 1970, 3320, 3403, 3940, 6806, 7880, 8077, 13612, 16154, 16351, 17015, 27224, 32308, 32702, 34030, 40385, 64616, 65404, 68060, 80770, 81755, 130808, 136120, 161540, 163510, 323080, 327020, 654040, 670391, 1340782, 2681564, 3351955, 5363128, 6703910, 13407820, 26815640]

約数ペア:

[(1, 26815640), (2, 13407820), (4, 6703910), (5, 5363128), (8, 3351955), (10, 2681564), (20, 1340782), (40, 670391), (41, 654040), (82, 327020), (83, 323080), (164, 163510), (166, 161540), (197, 136120), (205, 130808), (328, 81755), (332, 80770), (394, 68060), (410, 65404), (415, 64616), (664, 40385), (788, 34030), (820, 32702), (830, 32308), (985, 27224), (1576, 17015), (1640, 16351), (1660, 16154), (1970, 13612), (3320, 8077), (3403, 7880), (3940, 6806)]