1620861984

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{331}}^1\times {\mathrm{347}}^1$

素因数の和:708

約数の個数: 216

約数和(自身を含む): 5393567088

約数和(自身を除く): 3772705104

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 331, 336, 347, 392, 441, 504, 588, 662, 672, 694, 784, 882, 993, 1008, 1041, 1176, 1324, 1388, 1568, 1764, 1986, 2016, 2082, 2317, 2352, 2429, 2648, 2776, 2979, 3123, 3528, 3972, 4164, 4634, 4704, 4858, 5296, 5552, 5958, 6246, 6951, 7056, 7287, 7944, 8328, 9268, 9716, 10592, 11104, 11916, 12492, 13902, 14112, 14574, 15888, 16219, 16656, 17003, 18536, 19432, 20853, 21861, 23832, 24984, 27804, 29148, 31776, 32438, 33312, 34006, 37072, 38864, 41706, 43722, 47664, 48657, 49968, 51009, 55608, 58296, 64876, 68012, 74144, 77728, 83412, 87444, 95328, 97314, 99936, 102018, 111216, 114857, 116592, 129752, 136024, 145971, 153027, 166824, 174888, 194628, 204036, 222432, 229714, 233184, 259504, 272048, 291942, 306054, 333648, 344571, 349776, 389256, 408072, 459428, 519008, 544096, 583884, 612108, 667296, 689142, 699552, 778512, 803999, 816144, 918856, 1033713, 1167768, 1224216, 1378284, 1557024, 1607998, 1632288, 1837712, 2067426, 2335536, 2411997, 2448432, 2756568, 3215996, 3675424, 4134852, 4671072, 4823994, 4896864, 5513136, 5627993, 6431992, 7235991, 8269704, 9647988, 11026272, 11255986, 12863984, 14471982, 16539408, 16883979, 19295976, 22511972, 25727968, 28943964, 33078816, 33767958, 38591952, 45023944, 50651937, 57887928, 67535916, 77183904, 90047888, 101303874, 115775856, 135071832, 180095776, 202607748, 231551712, 270143664, 405215496, 540287328, 810430992, 1620861984]

約数ペア:

[(1, 1620861984), (2, 810430992), (3, 540287328), (4, 405215496), (6, 270143664), (7, 231551712), (8, 202607748), (9, 180095776), (12, 135071832), (14, 115775856), (16, 101303874), (18, 90047888), (21, 77183904), (24, 67535916), (28, 57887928), (32, 50651937), (36, 45023944), (42, 38591952), (48, 33767958), (49, 33078816), (56, 28943964), (63, 25727968), (72, 22511972), (84, 19295976), (96, 16883979), (98, 16539408), (112, 14471982), (126, 12863984), (144, 11255986), (147, 11026272), (168, 9647988), (196, 8269704), (224, 7235991), (252, 6431992), (288, 5627993), (294, 5513136), (331, 4896864), (336, 4823994), (347, 4671072), (392, 4134852), (441, 3675424), (504, 3215996), (588, 2756568), (662, 2448432), (672, 2411997), (694, 2335536), (784, 2067426), (882, 1837712), (993, 1632288), (1008, 1607998), (1041, 1557024), (1176, 1378284), (1324, 1224216), (1388, 1167768), (1568, 1033713), (1764, 918856), (1986, 816144), (2016, 803999), (2082, 778512), (2317, 699552), (2352, 689142), (2429, 667296), (2648, 612108), (2776, 583884), (2979, 544096), (3123, 519008), (3528, 459428), (3972, 408072), (4164, 389256), (4634, 349776), (4704, 344571), (4858, 333648), (5296, 306054), (5552, 291942), (5958, 272048), (6246, 259504), (6951, 233184), (7056, 229714), (7287, 222432), (7944, 204036), (8328, 194628), (9268, 174888), (9716, 166824), (10592, 153027), (11104, 145971), (11916, 136024), (12492, 129752), (13902, 116592), (14112, 114857), (14574, 111216), (15888, 102018), (16219, 99936), (16656, 97314), (17003, 95328), (18536, 87444), (19432, 83412), (20853, 77728), (21861, 74144), (23832, 68012), (24984, 64876), (27804, 58296), (29148, 55608), (31776, 51009), (32438, 49968), (33312, 48657), (34006, 47664), (37072, 43722), (38864, 41706)]