20375520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:273

約数の個数: 192

約数和(自身を含む): 74462976

約数和(自身を除く): 54087456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 96, 102, 110, 120, 132, 136, 160, 165, 170, 176, 187, 204, 220, 227, 240, 255, 264, 272, 330, 340, 352, 374, 408, 440, 454, 480, 510, 528, 544, 561, 660, 680, 681, 748, 816, 880, 908, 935, 1020, 1056, 1122, 1135, 1320, 1360, 1362, 1496, 1632, 1760, 1816, 1870, 2040, 2244, 2270, 2497, 2640, 2720, 2724, 2805, 2992, 3405, 3632, 3740, 3859, 4080, 4488, 4540, 4994, 5280, 5448, 5610, 5984, 6810, 7264, 7480, 7491, 7718, 8160, 8976, 9080, 9988, 10896, 11220, 11577, 12485, 13620, 14960, 14982, 15436, 17952, 18160, 19295, 19976, 21792, 22440, 23154, 24970, 27240, 29920, 29964, 30872, 36320, 37455, 38590, 39952, 42449, 44880, 46308, 49940, 54480, 57885, 59928, 61744, 74910, 77180, 79904, 84898, 89760, 92616, 99880, 108960, 115770, 119856, 123488, 127347, 149820, 154360, 169796, 185232, 199760, 212245, 231540, 239712, 254694, 299640, 308720, 339592, 370464, 399520, 424490, 463080, 509388, 599280, 617440, 636735, 679184, 848980, 926160, 1018776, 1198560, 1273470, 1358368, 1697960, 1852320, 2037552, 2546940, 3395920, 4075104, 5093880, 6791840, 10187760, 20375520]

約数ペア:

[(1, 20375520), (2, 10187760), (3, 6791840), (4, 5093880), (5, 4075104), (6, 3395920), (8, 2546940), (10, 2037552), (11, 1852320), (12, 1697960), (15, 1358368), (16, 1273470), (17, 1198560), (20, 1018776), (22, 926160), (24, 848980), (30, 679184), (32, 636735), (33, 617440), (34, 599280), (40, 509388), (44, 463080), (48, 424490), (51, 399520), (55, 370464), (60, 339592), (66, 308720), (68, 299640), (80, 254694), (85, 239712), (88, 231540), (96, 212245), (102, 199760), (110, 185232), (120, 169796), (132, 154360), (136, 149820), (160, 127347), (165, 123488), (170, 119856), (176, 115770), (187, 108960), (204, 99880), (220, 92616), (227, 89760), (240, 84898), (255, 79904), (264, 77180), (272, 74910), (330, 61744), (340, 59928), (352, 57885), (374, 54480), (408, 49940), (440, 46308), (454, 44880), (480, 42449), (510, 39952), (528, 38590), (544, 37455), (561, 36320), (660, 30872), (680, 29964), (681, 29920), (748, 27240), (816, 24970), (880, 23154), (908, 22440), (935, 21792), (1020, 19976), (1056, 19295), (1122, 18160), (1135, 17952), (1320, 15436), (1360, 14982), (1362, 14960), (1496, 13620), (1632, 12485), (1760, 11577), (1816, 11220), (1870, 10896), (2040, 9988), (2244, 9080), (2270, 8976), (2497, 8160), (2640, 7718), (2720, 7491), (2724, 7480), (2805, 7264), (2992, 6810), (3405, 5984), (3632, 5610), (3740, 5448), (3859, 5280), (4080, 4994), (4488, 4540)]