123141720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:629

約数の個数: 128

約数和(自身を含む): 400881600

約数和(自身を除く): 277739880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 193, 195, 260, 312, 386, 390, 409, 520, 579, 772, 780, 818, 965, 1158, 1227, 1544, 1560, 1636, 1930, 2045, 2316, 2454, 2509, 2895, 3272, 3860, 4090, 4632, 4908, 5018, 5317, 5790, 6135, 7527, 7720, 8180, 9816, 10036, 10634, 11580, 12270, 12545, 15054, 15951, 16360, 20072, 21268, 23160, 24540, 25090, 26585, 30108, 31902, 37635, 42536, 49080, 50180, 53170, 60216, 63804, 75270, 78937, 79755, 100360, 106340, 127608, 150540, 157874, 159510, 212680, 236811, 301080, 315748, 319020, 394685, 473622, 631496, 638040, 789370, 947244, 1026181, 1184055, 1578740, 1894488, 2052362, 2368110, 3078543, 3157480, 4104724, 4736220, 5130905, 6157086, 8209448, 9472440, 10261810, 12314172, 15392715, 20523620, 24628344, 30785430, 41047240, 61570860, 123141720]

約数ペア:

[(1, 123141720), (2, 61570860), (3, 41047240), (4, 30785430), (5, 24628344), (6, 20523620), (8, 15392715), (10, 12314172), (12, 10261810), (13, 9472440), (15, 8209448), (20, 6157086), (24, 5130905), (26, 4736220), (30, 4104724), (39, 3157480), (40, 3078543), (52, 2368110), (60, 2052362), (65, 1894488), (78, 1578740), (104, 1184055), (120, 1026181), (130, 947244), (156, 789370), (193, 638040), (195, 631496), (260, 473622), (312, 394685), (386, 319020), (390, 315748), (409, 301080), (520, 236811), (579, 212680), (772, 159510), (780, 157874), (818, 150540), (965, 127608), (1158, 106340), (1227, 100360), (1544, 79755), (1560, 78937), (1636, 75270), (1930, 63804), (2045, 60216), (2316, 53170), (2454, 50180), (2509, 49080), (2895, 42536), (3272, 37635), (3860, 31902), (4090, 30108), (4632, 26585), (4908, 25090), (5018, 24540), (5317, 23160), (5790, 21268), (6135, 20072), (7527, 16360), (7720, 15951), (8180, 15054), (9816, 12545), (10036, 12270), (10634, 11580)]