81540704

素因数分解:

$2^5\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:90

約数の個数: 192

約数和(自身を含む): 217728000

約数和(自身を除く): 136187296

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 23, 28, 32, 34, 38, 46, 49, 56, 68, 76, 92, 98, 112, 119, 133, 136, 152, 161, 184, 196, 224, 238, 266, 272, 304, 322, 323, 343, 368, 391, 392, 437, 476, 532, 544, 608, 644, 646, 686, 736, 782, 784, 833, 874, 931, 952, 1064, 1127, 1288, 1292, 1372, 1564, 1568, 1666, 1748, 1862, 1904, 2128, 2254, 2261, 2576, 2584, 2737, 2744, 3059, 3128, 3332, 3496, 3724, 3808, 4256, 4508, 4522, 5152, 5168, 5474, 5488, 5831, 6118, 6256, 6517, 6664, 6992, 7429, 7448, 7889, 9016, 9044, 10336, 10948, 10976, 11662, 12236, 12512, 13034, 13328, 13984, 14858, 14896, 15778, 15827, 18032, 18088, 19159, 21413, 21896, 23324, 24472, 26068, 26656, 29716, 29792, 31556, 31654, 36064, 36176, 38318, 42826, 43792, 46648, 48944, 52003, 52136, 59432, 63112, 63308, 72352, 76636, 85652, 87584, 93296, 97888, 104006, 104272, 110789, 118864, 126224, 126616, 134113, 149891, 153272, 171304, 186592, 208012, 208544, 221578, 237728, 252448, 253232, 268226, 299782, 306544, 342608, 364021, 416024, 443156, 506464, 536452, 599564, 613088, 685216, 728042, 832048, 886312, 1072904, 1199128, 1456084, 1664096, 1772624, 2145808, 2398256, 2548147, 2912168, 3545248, 4291616, 4796512, 5096294, 5824336, 10192588, 11648672, 20385176, 40770352, 81540704]

約数ペア:

[(1, 81540704), (2, 40770352), (4, 20385176), (7, 11648672), (8, 10192588), (14, 5824336), (16, 5096294), (17, 4796512), (19, 4291616), (23, 3545248), (28, 2912168), (32, 2548147), (34, 2398256), (38, 2145808), (46, 1772624), (49, 1664096), (56, 1456084), (68, 1199128), (76, 1072904), (92, 886312), (98, 832048), (112, 728042), (119, 685216), (133, 613088), (136, 599564), (152, 536452), (161, 506464), (184, 443156), (196, 416024), (224, 364021), (238, 342608), (266, 306544), (272, 299782), (304, 268226), (322, 253232), (323, 252448), (343, 237728), (368, 221578), (391, 208544), (392, 208012), (437, 186592), (476, 171304), (532, 153272), (544, 149891), (608, 134113), (644, 126616), (646, 126224), (686, 118864), (736, 110789), (782, 104272), (784, 104006), (833, 97888), (874, 93296), (931, 87584), (952, 85652), (1064, 76636), (1127, 72352), (1288, 63308), (1292, 63112), (1372, 59432), (1564, 52136), (1568, 52003), (1666, 48944), (1748, 46648), (1862, 43792), (1904, 42826), (2128, 38318), (2254, 36176), (2261, 36064), (2576, 31654), (2584, 31556), (2737, 29792), (2744, 29716), (3059, 26656), (3128, 26068), (3332, 24472), (3496, 23324), (3724, 21896), (3808, 21413), (4256, 19159), (4508, 18088), (4522, 18032), (5152, 15827), (5168, 15778), (5474, 14896), (5488, 14858), (5831, 13984), (6118, 13328), (6256, 13034), (6517, 12512), (6664, 12236), (6992, 11662), (7429, 10976), (7448, 10948), (7889, 10336), (9016, 9044)]