31213728

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:436

約数の個数: 192

約数和(自身を含む): 112331520

約数和(自身を除く): 81117792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 144, 156, 168, 182, 189, 208, 216, 224, 234, 252, 273, 288, 312, 336, 351, 364, 378, 397, 416, 432, 468, 504, 546, 624, 672, 702, 728, 756, 794, 819, 864, 936, 1008, 1092, 1191, 1248, 1404, 1456, 1512, 1588, 1638, 1872, 2016, 2184, 2382, 2457, 2779, 2808, 2912, 3024, 3176, 3276, 3573, 3744, 4368, 4764, 4914, 5161, 5558, 5616, 6048, 6352, 6552, 7146, 8337, 8736, 9528, 9828, 10322, 10719, 11116, 11232, 12704, 13104, 14292, 15483, 16674, 19056, 19656, 20644, 21438, 22232, 25011, 26208, 28584, 30966, 33348, 36127, 38112, 39312, 41288, 42876, 44464, 46449, 50022, 57168, 61932, 66696, 72254, 75033, 78624, 82576, 85752, 88928, 92898, 100044, 108381, 114336, 123864, 133392, 139347, 144508, 150066, 165152, 171504, 185796, 200088, 216762, 247728, 266784, 278694, 289016, 300132, 325143, 343008, 371592, 400176, 433524, 495456, 557388, 578032, 600264, 650286, 743184, 800352, 867048, 975429, 1114776, 1156064, 1200528, 1300572, 1486368, 1734096, 1950858, 2229552, 2401056, 2601144, 3468192, 3901716, 4459104, 5202288, 7803432, 10404576, 15606864, 31213728]

約数ペア:

[(1, 31213728), (2, 15606864), (3, 10404576), (4, 7803432), (6, 5202288), (7, 4459104), (8, 3901716), (9, 3468192), (12, 2601144), (13, 2401056), (14, 2229552), (16, 1950858), (18, 1734096), (21, 1486368), (24, 1300572), (26, 1200528), (27, 1156064), (28, 1114776), (32, 975429), (36, 867048), (39, 800352), (42, 743184), (48, 650286), (52, 600264), (54, 578032), (56, 557388), (63, 495456), (72, 433524), (78, 400176), (84, 371592), (91, 343008), (96, 325143), (104, 300132), (108, 289016), (112, 278694), (117, 266784), (126, 247728), (144, 216762), (156, 200088), (168, 185796), (182, 171504), (189, 165152), (208, 150066), (216, 144508), (224, 139347), (234, 133392), (252, 123864), (273, 114336), (288, 108381), (312, 100044), (336, 92898), (351, 88928), (364, 85752), (378, 82576), (397, 78624), (416, 75033), (432, 72254), (468, 66696), (504, 61932), (546, 57168), (624, 50022), (672, 46449), (702, 44464), (728, 42876), (756, 41288), (794, 39312), (819, 38112), (864, 36127), (936, 33348), (1008, 30966), (1092, 28584), (1191, 26208), (1248, 25011), (1404, 22232), (1456, 21438), (1512, 20644), (1588, 19656), (1638, 19056), (1872, 16674), (2016, 15483), (2184, 14292), (2382, 13104), (2457, 12704), (2779, 11232), (2808, 11116), (2912, 10719), (3024, 10322), (3176, 9828), (3276, 9528), (3573, 8736), (3744, 8337), (4368, 7146), (4764, 6552), (4914, 6352), (5161, 6048), (5558, 5616)]