20081409648

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^2\times {\mathrm{419}}^1\times {\mathrm{1039}}^1$

素因数の和:1531

約数の個数: 120

約数和(自身を含む): 53784057600

約数和(自身を除く): 33702647952

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 372, 419, 496, 744, 838, 961, 1039, 1257, 1488, 1676, 1922, 2078, 2514, 2883, 3117, 3352, 3844, 4156, 5028, 5766, 6234, 6704, 7688, 8312, 10056, 11532, 12468, 12989, 15376, 16624, 20112, 23064, 24936, 25978, 32209, 38967, 46128, 49872, 51956, 64418, 77934, 96627, 103912, 128836, 155868, 193254, 207824, 257672, 311736, 386508, 402659, 435341, 515344, 623472, 773016, 805318, 870682, 998479, 1207977, 1306023, 1546032, 1610636, 1741364, 1996958, 2415954, 2612046, 2995437, 3221272, 3482728, 3993916, 4831908, 5224092, 5990874, 6442544, 6965456, 7987832, 9663816, 10448184, 11981748, 13495571, 15975664, 19327632, 20896368, 23963496, 26991142, 40486713, 47926992, 53982284, 80973426, 107964568, 161946852, 215929136, 323893704, 418362701, 647787408, 836725402, 1255088103, 1673450804, 2510176206, 3346901608, 5020352412, 6693803216, 10040704824, 20081409648]

約数ペア:

[(1, 20081409648), (2, 10040704824), (3, 6693803216), (4, 5020352412), (6, 3346901608), (8, 2510176206), (12, 1673450804), (16, 1255088103), (24, 836725402), (31, 647787408), (48, 418362701), (62, 323893704), (93, 215929136), (124, 161946852), (186, 107964568), (248, 80973426), (372, 53982284), (419, 47926992), (496, 40486713), (744, 26991142), (838, 23963496), (961, 20896368), (1039, 19327632), (1257, 15975664), (1488, 13495571), (1676, 11981748), (1922, 10448184), (2078, 9663816), (2514, 7987832), (2883, 6965456), (3117, 6442544), (3352, 5990874), (3844, 5224092), (4156, 4831908), (5028, 3993916), (5766, 3482728), (6234, 3221272), (6704, 2995437), (7688, 2612046), (8312, 2415954), (10056, 1996958), (11532, 1741364), (12468, 1610636), (12989, 1546032), (15376, 1306023), (16624, 1207977), (20112, 998479), (23064, 870682), (24936, 805318), (25978, 773016), (32209, 623472), (38967, 515344), (46128, 435341), (49872, 402659), (51956, 386508), (64418, 311736), (77934, 257672), (96627, 207824), (103912, 193254), (128836, 155868)]