156839920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 377118720

約数和(自身を除く): 220278800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 127, 172, 215, 254, 344, 359, 430, 508, 635, 688, 718, 860, 1016, 1270, 1436, 1720, 1795, 2032, 2540, 2872, 3440, 3590, 5080, 5461, 5744, 7180, 10160, 10922, 14360, 15437, 21844, 27305, 28720, 30874, 43688, 45593, 54610, 61748, 77185, 87376, 91186, 109220, 123496, 154370, 182372, 218440, 227965, 246992, 308740, 364744, 436880, 455930, 617480, 729488, 911860, 1234960, 1823720, 1960499, 3647440, 3920998, 7841996, 9802495, 15683992, 19604990, 31367984, 39209980, 78419960, 156839920]

約数ペア:

[(1, 156839920), (2, 78419960), (4, 39209980), (5, 31367984), (8, 19604990), (10, 15683992), (16, 9802495), (20, 7841996), (40, 3920998), (43, 3647440), (80, 1960499), (86, 1823720), (127, 1234960), (172, 911860), (215, 729488), (254, 617480), (344, 455930), (359, 436880), (430, 364744), (508, 308740), (635, 246992), (688, 227965), (718, 218440), (860, 182372), (1016, 154370), (1270, 123496), (1436, 109220), (1720, 91186), (1795, 87376), (2032, 77185), (2540, 61748), (2872, 54610), (3440, 45593), (3590, 43688), (5080, 30874), (5461, 28720), (5744, 27305), (7180, 21844), (10160, 15437), (10922, 14360)]