20745984

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 67108608

約数和(自身を除く): 46362624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 51, 56, 64, 68, 84, 96, 102, 112, 119, 128, 136, 168, 192, 204, 224, 227, 238, 256, 272, 336, 357, 384, 408, 448, 454, 476, 544, 672, 681, 714, 768, 816, 896, 908, 952, 1088, 1344, 1362, 1428, 1589, 1632, 1792, 1816, 1904, 2176, 2688, 2724, 2856, 3178, 3264, 3632, 3808, 3859, 4352, 4767, 5376, 5448, 5712, 6356, 6528, 7264, 7616, 7718, 9534, 10896, 11424, 11577, 12712, 13056, 14528, 15232, 15436, 19068, 21792, 22848, 23154, 25424, 27013, 29056, 30464, 30872, 38136, 43584, 45696, 46308, 50848, 54026, 58112, 61744, 76272, 81039, 87168, 91392, 92616, 101696, 108052, 123488, 152544, 162078, 174336, 185232, 203392, 216104, 246976, 305088, 324156, 370464, 406784, 432208, 493952, 610176, 648312, 740928, 864416, 987904, 1220352, 1296624, 1481856, 1728832, 2593248, 2963712, 3457664, 5186496, 6915328, 10372992, 20745984]

約数ペア:

[(1, 20745984), (2, 10372992), (3, 6915328), (4, 5186496), (6, 3457664), (7, 2963712), (8, 2593248), (12, 1728832), (14, 1481856), (16, 1296624), (17, 1220352), (21, 987904), (24, 864416), (28, 740928), (32, 648312), (34, 610176), (42, 493952), (48, 432208), (51, 406784), (56, 370464), (64, 324156), (68, 305088), (84, 246976), (96, 216104), (102, 203392), (112, 185232), (119, 174336), (128, 162078), (136, 152544), (168, 123488), (192, 108052), (204, 101696), (224, 92616), (227, 91392), (238, 87168), (256, 81039), (272, 76272), (336, 61744), (357, 58112), (384, 54026), (408, 50848), (448, 46308), (454, 45696), (476, 43584), (544, 38136), (672, 30872), (681, 30464), (714, 29056), (768, 27013), (816, 25424), (896, 23154), (908, 22848), (952, 21792), (1088, 19068), (1344, 15436), (1362, 15232), (1428, 14528), (1589, 13056), (1632, 12712), (1792, 11577), (1816, 11424), (1904, 10896), (2176, 9534), (2688, 7718), (2724, 7616), (2856, 7264), (3178, 6528), (3264, 6356), (3632, 5712), (3808, 5448), (3859, 5376), (4352, 4767)]