20561568

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:366

約数の個数: 96

約数和(自身を含む): 58677696

約数和(自身を除く): 38116128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 43, 48, 51, 68, 86, 96, 102, 129, 136, 172, 204, 258, 272, 293, 344, 408, 516, 544, 586, 688, 731, 816, 879, 1032, 1172, 1376, 1462, 1632, 1758, 2064, 2193, 2344, 2924, 3516, 4128, 4386, 4688, 4981, 5848, 7032, 8772, 9376, 9962, 11696, 12599, 14064, 14943, 17544, 19924, 23392, 25198, 28128, 29886, 35088, 37797, 39848, 50396, 59772, 70176, 75594, 79696, 100792, 119544, 151188, 159392, 201584, 214183, 239088, 302376, 403168, 428366, 478176, 604752, 642549, 856732, 1209504, 1285098, 1713464, 2570196, 3426928, 5140392, 6853856, 10280784, 20561568]

約数ペア:

[(1, 20561568), (2, 10280784), (3, 6853856), (4, 5140392), (6, 3426928), (8, 2570196), (12, 1713464), (16, 1285098), (17, 1209504), (24, 856732), (32, 642549), (34, 604752), (43, 478176), (48, 428366), (51, 403168), (68, 302376), (86, 239088), (96, 214183), (102, 201584), (129, 159392), (136, 151188), (172, 119544), (204, 100792), (258, 79696), (272, 75594), (293, 70176), (344, 59772), (408, 50396), (516, 39848), (544, 37797), (586, 35088), (688, 29886), (731, 28128), (816, 25198), (879, 23392), (1032, 19924), (1172, 17544), (1376, 14943), (1462, 14064), (1632, 12599), (1758, 11696), (2064, 9962), (2193, 9376), (2344, 8772), (2924, 7032), (3516, 5848), (4128, 4981), (4386, 4688)]