19990656

素因数分解:

$2^7\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 192

約数和(自身を含む): 68527680

約数和(自身を除く): 48537024

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 37, 42, 48, 56, 63, 64, 67, 72, 74, 84, 96, 111, 112, 126, 128, 134, 144, 148, 168, 192, 201, 222, 224, 252, 259, 268, 288, 296, 333, 336, 384, 402, 444, 448, 469, 504, 518, 536, 576, 592, 603, 666, 672, 777, 804, 888, 896, 938, 1008, 1036, 1072, 1152, 1184, 1206, 1332, 1344, 1407, 1554, 1608, 1776, 1876, 2016, 2072, 2144, 2331, 2368, 2412, 2479, 2664, 2688, 2814, 3108, 3216, 3552, 3752, 4032, 4144, 4221, 4288, 4662, 4736, 4824, 4958, 5328, 5628, 6216, 6432, 7104, 7437, 7504, 8064, 8288, 8442, 8576, 9324, 9648, 9916, 10656, 11256, 12432, 12864, 14208, 14874, 15008, 16576, 16884, 17353, 18648, 19296, 19832, 21312, 22311, 22512, 24864, 25728, 29748, 30016, 33152, 33768, 34706, 37296, 38592, 39664, 42624, 44622, 45024, 49728, 52059, 59496, 60032, 67536, 69412, 74592, 77184, 79328, 89244, 90048, 99456, 104118, 118992, 135072, 138824, 149184, 156177, 158656, 178488, 180096, 208236, 237984, 270144, 277648, 298368, 312354, 317312, 356976, 416472, 475968, 540288, 555296, 624708, 713952, 832944, 951936, 1110592, 1249416, 1427904, 1665888, 2221184, 2498832, 2855808, 3331776, 4997664, 6663552, 9995328, 19990656]

約数ペア:

[(1, 19990656), (2, 9995328), (3, 6663552), (4, 4997664), (6, 3331776), (7, 2855808), (8, 2498832), (9, 2221184), (12, 1665888), (14, 1427904), (16, 1249416), (18, 1110592), (21, 951936), (24, 832944), (28, 713952), (32, 624708), (36, 555296), (37, 540288), (42, 475968), (48, 416472), (56, 356976), (63, 317312), (64, 312354), (67, 298368), (72, 277648), (74, 270144), (84, 237984), (96, 208236), (111, 180096), (112, 178488), (126, 158656), (128, 156177), (134, 149184), (144, 138824), (148, 135072), (168, 118992), (192, 104118), (201, 99456), (222, 90048), (224, 89244), (252, 79328), (259, 77184), (268, 74592), (288, 69412), (296, 67536), (333, 60032), (336, 59496), (384, 52059), (402, 49728), (444, 45024), (448, 44622), (469, 42624), (504, 39664), (518, 38592), (536, 37296), (576, 34706), (592, 33768), (603, 33152), (666, 30016), (672, 29748), (777, 25728), (804, 24864), (888, 22512), (896, 22311), (938, 21312), (1008, 19832), (1036, 19296), (1072, 18648), (1152, 17353), (1184, 16884), (1206, 16576), (1332, 15008), (1344, 14874), (1407, 14208), (1554, 12864), (1608, 12432), (1776, 11256), (1876, 10656), (2016, 9916), (2072, 9648), (2144, 9324), (2331, 8576), (2368, 8442), (2412, 8288), (2479, 8064), (2664, 7504), (2688, 7437), (2814, 7104), (3108, 6432), (3216, 6216), (3552, 5628), (3752, 5328), (4032, 4958), (4144, 4824), (4221, 4736), (4288, 4662)]