20528928

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{599}}^1$

素因数の和:639

約数の個数: 144

約数和(自身を含む): 70761600

約数和(自身を除く): 50232672

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 599, 612, 672, 714, 816, 952, 1008, 1071, 1198, 1224, 1428, 1632, 1797, 1904, 2016, 2142, 2396, 2448, 2856, 3594, 3808, 4193, 4284, 4792, 4896, 5391, 5712, 7188, 8386, 8568, 9584, 10183, 10782, 11424, 12579, 14376, 16772, 17136, 19168, 20366, 21564, 25158, 28752, 30549, 33544, 34272, 37737, 40732, 43128, 50316, 57504, 61098, 67088, 71281, 75474, 81464, 86256, 91647, 100632, 122196, 134176, 142562, 150948, 162928, 172512, 183294, 201264, 213843, 244392, 285124, 301896, 325856, 366588, 402528, 427686, 488784, 570248, 603792, 641529, 733176, 855372, 977568, 1140496, 1207584, 1283058, 1466352, 1710744, 2280992, 2566116, 2932704, 3421488, 5132232, 6842976, 10264464, 20528928]

約数ペア:

[(1, 20528928), (2, 10264464), (3, 6842976), (4, 5132232), (6, 3421488), (7, 2932704), (8, 2566116), (9, 2280992), (12, 1710744), (14, 1466352), (16, 1283058), (17, 1207584), (18, 1140496), (21, 977568), (24, 855372), (28, 733176), (32, 641529), (34, 603792), (36, 570248), (42, 488784), (48, 427686), (51, 402528), (56, 366588), (63, 325856), (68, 301896), (72, 285124), (84, 244392), (96, 213843), (102, 201264), (112, 183294), (119, 172512), (126, 162928), (136, 150948), (144, 142562), (153, 134176), (168, 122196), (204, 100632), (224, 91647), (238, 86256), (252, 81464), (272, 75474), (288, 71281), (306, 67088), (336, 61098), (357, 57504), (408, 50316), (476, 43128), (504, 40732), (544, 37737), (599, 34272), (612, 33544), (672, 30549), (714, 28752), (816, 25158), (952, 21564), (1008, 20366), (1071, 19168), (1198, 17136), (1224, 16772), (1428, 14376), (1632, 12579), (1797, 11424), (1904, 10782), (2016, 10183), (2142, 9584), (2396, 8568), (2448, 8386), (2856, 7188), (3594, 5712), (3808, 5391), (4193, 4896), (4284, 4792)]