256754040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10861}}^1$

素因数の和:11072

約数の個数: 64

約数和(自身を含む): 774243360

約数和(自身を除く): 517489320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 985, 1182, 1576, 1970, 2364, 2955, 3940, 4728, 5910, 7880, 10861, 11820, 21722, 23640, 32583, 43444, 54305, 65166, 86888, 108610, 130332, 162915, 217220, 260664, 325830, 434440, 651660, 1303320, 2139617, 4279234, 6418851, 8558468, 10698085, 12837702, 17116936, 21396170, 25675404, 32094255, 42792340, 51350808, 64188510, 85584680, 128377020, 256754040]

約数ペア:

[(1, 256754040), (2, 128377020), (3, 85584680), (4, 64188510), (5, 51350808), (6, 42792340), (8, 32094255), (10, 25675404), (12, 21396170), (15, 17116936), (20, 12837702), (24, 10698085), (30, 8558468), (40, 6418851), (60, 4279234), (120, 2139617), (197, 1303320), (394, 651660), (591, 434440), (788, 325830), (985, 260664), (1182, 217220), (1576, 162915), (1970, 130332), (2364, 108610), (2955, 86888), (3940, 65166), (4728, 54305), (5910, 43444), (7880, 32583), (10861, 23640), (11820, 21722)]