126808720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 304837632

約数和(自身を除く): 178028912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 191, 193, 215, 344, 382, 386, 430, 688, 764, 772, 860, 955, 965, 1528, 1544, 1720, 1910, 1930, 3056, 3088, 3440, 3820, 3860, 7640, 7720, 8213, 8299, 15280, 15440, 16426, 16598, 32852, 33196, 36863, 41065, 41495, 65704, 66392, 73726, 82130, 82990, 131408, 132784, 147452, 164260, 165980, 184315, 294904, 328520, 331960, 368630, 589808, 657040, 663920, 737260, 1474520, 1585109, 2949040, 3170218, 6340436, 7925545, 12680872, 15851090, 25361744, 31702180, 63404360, 126808720]

約数ペア:

[(1, 126808720), (2, 63404360), (4, 31702180), (5, 25361744), (8, 15851090), (10, 12680872), (16, 7925545), (20, 6340436), (40, 3170218), (43, 2949040), (80, 1585109), (86, 1474520), (172, 737260), (191, 663920), (193, 657040), (215, 589808), (344, 368630), (382, 331960), (386, 328520), (430, 294904), (688, 184315), (764, 165980), (772, 164260), (860, 147452), (955, 132784), (965, 131408), (1528, 82990), (1544, 82130), (1720, 73726), (1910, 66392), (1930, 65704), (3056, 41495), (3088, 41065), (3440, 36863), (3820, 33196), (3860, 32852), (7640, 16598), (7720, 16426), (8213, 15440), (8299, 15280)]