20153760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{347}}^1$

素因数の和:387

約数の個数: 144

約数和(自身を含む): 69981408

約数和(自身を除く): 49827648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 220, 240, 242, 264, 330, 347, 352, 363, 440, 480, 484, 528, 605, 660, 694, 726, 880, 968, 1041, 1056, 1210, 1320, 1388, 1452, 1735, 1760, 1815, 1936, 2082, 2420, 2640, 2776, 2904, 3470, 3630, 3817, 3872, 4164, 4840, 5205, 5280, 5552, 5808, 6940, 7260, 7634, 8328, 9680, 10410, 11104, 11451, 11616, 13880, 14520, 15268, 16656, 19085, 19360, 20820, 22902, 27760, 29040, 30536, 33312, 38170, 41640, 41987, 45804, 55520, 57255, 58080, 61072, 76340, 83280, 83974, 91608, 114510, 122144, 125961, 152680, 166560, 167948, 183216, 209935, 229020, 251922, 305360, 335896, 366432, 419870, 458040, 503844, 610720, 629805, 671792, 839740, 916080, 1007688, 1259610, 1343584, 1679480, 1832160, 2015376, 2519220, 3358960, 4030752, 5038440, 6717920, 10076880, 20153760]

約数ペア:

[(1, 20153760), (2, 10076880), (3, 6717920), (4, 5038440), (5, 4030752), (6, 3358960), (8, 2519220), (10, 2015376), (11, 1832160), (12, 1679480), (15, 1343584), (16, 1259610), (20, 1007688), (22, 916080), (24, 839740), (30, 671792), (32, 629805), (33, 610720), (40, 503844), (44, 458040), (48, 419870), (55, 366432), (60, 335896), (66, 305360), (80, 251922), (88, 229020), (96, 209935), (110, 183216), (120, 167948), (121, 166560), (132, 152680), (160, 125961), (165, 122144), (176, 114510), (220, 91608), (240, 83974), (242, 83280), (264, 76340), (330, 61072), (347, 58080), (352, 57255), (363, 55520), (440, 45804), (480, 41987), (484, 41640), (528, 38170), (605, 33312), (660, 30536), (694, 29040), (726, 27760), (880, 22902), (968, 20820), (1041, 19360), (1056, 19085), (1210, 16656), (1320, 15268), (1388, 14520), (1452, 13880), (1735, 11616), (1760, 11451), (1815, 11104), (1936, 10410), (2082, 9680), (2420, 8328), (2640, 7634), (2776, 7260), (2904, 6940), (3470, 5808), (3630, 5552), (3817, 5280), (3872, 5205), (4164, 4840)]