20400072

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 68947200

約数和(自身を除く): 48547128

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 19, 21, 22, 24, 28, 33, 38, 42, 44, 49, 56, 57, 66, 76, 77, 83, 84, 88, 98, 114, 132, 133, 147, 152, 154, 166, 168, 196, 209, 228, 231, 249, 264, 266, 294, 308, 332, 392, 399, 418, 456, 462, 498, 532, 539, 581, 588, 616, 627, 664, 798, 836, 913, 924, 931, 996, 1064, 1078, 1162, 1176, 1254, 1463, 1577, 1596, 1617, 1672, 1743, 1826, 1848, 1862, 1992, 2156, 2324, 2508, 2739, 2793, 2926, 3154, 3192, 3234, 3486, 3652, 3724, 4067, 4312, 4389, 4648, 4731, 5016, 5478, 5586, 5852, 6308, 6391, 6468, 6972, 7304, 7448, 8134, 8778, 9462, 10241, 10956, 11039, 11172, 11704, 12201, 12616, 12782, 12936, 13944, 16268, 17347, 17556, 18924, 19173, 20482, 21912, 22078, 22344, 24402, 25564, 30723, 32536, 33117, 34694, 35112, 37848, 38346, 40964, 44156, 44737, 48804, 51128, 52041, 61446, 66234, 69388, 76692, 77273, 81928, 88312, 89474, 97608, 104082, 121429, 122892, 132468, 134211, 138776, 153384, 154546, 178948, 208164, 231819, 242858, 245784, 264936, 268422, 309092, 357896, 364287, 416328, 463638, 485716, 536844, 618184, 728574, 850003, 927276, 971432, 1073688, 1457148, 1700006, 1854552, 2550009, 2914296, 3400012, 5100018, 6800024, 10200036, 20400072]

約数ペア:

[(1, 20400072), (2, 10200036), (3, 6800024), (4, 5100018), (6, 3400012), (7, 2914296), (8, 2550009), (11, 1854552), (12, 1700006), (14, 1457148), (19, 1073688), (21, 971432), (22, 927276), (24, 850003), (28, 728574), (33, 618184), (38, 536844), (42, 485716), (44, 463638), (49, 416328), (56, 364287), (57, 357896), (66, 309092), (76, 268422), (77, 264936), (83, 245784), (84, 242858), (88, 231819), (98, 208164), (114, 178948), (132, 154546), (133, 153384), (147, 138776), (152, 134211), (154, 132468), (166, 122892), (168, 121429), (196, 104082), (209, 97608), (228, 89474), (231, 88312), (249, 81928), (264, 77273), (266, 76692), (294, 69388), (308, 66234), (332, 61446), (392, 52041), (399, 51128), (418, 48804), (456, 44737), (462, 44156), (498, 40964), (532, 38346), (539, 37848), (581, 35112), (588, 34694), (616, 33117), (627, 32536), (664, 30723), (798, 25564), (836, 24402), (913, 22344), (924, 22078), (931, 21912), (996, 20482), (1064, 19173), (1078, 18924), (1162, 17556), (1176, 17347), (1254, 16268), (1463, 13944), (1577, 12936), (1596, 12782), (1617, 12616), (1672, 12201), (1743, 11704), (1826, 11172), (1848, 11039), (1862, 10956), (1992, 10241), (2156, 9462), (2324, 8778), (2508, 8134), (2739, 7448), (2793, 7304), (2926, 6972), (3154, 6468), (3192, 6391), (3234, 6308), (3486, 5852), (3652, 5586), (3724, 5478), (4067, 5016), (4312, 4731), (4389, 4648)]