81041584

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 120

約数和(自身を含む): 188706672

約数和(自身を除く): 107665088

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 41, 43, 52, 68, 82, 86, 104, 136, 164, 169, 172, 208, 221, 272, 328, 338, 344, 442, 533, 559, 656, 676, 688, 697, 731, 884, 1066, 1118, 1352, 1394, 1462, 1763, 1768, 2132, 2236, 2704, 2788, 2873, 2924, 3526, 3536, 4264, 4472, 5576, 5746, 5848, 6929, 7052, 7267, 8528, 8944, 9061, 9503, 11152, 11492, 11696, 13858, 14104, 14534, 18122, 19006, 22919, 22984, 27716, 28208, 29068, 29971, 36244, 38012, 45838, 45968, 55432, 58136, 59942, 72488, 76024, 91676, 110864, 116272, 117793, 119884, 123539, 144976, 152048, 183352, 235586, 239768, 247078, 297947, 366704, 389623, 471172, 479536, 494156, 595894, 779246, 942344, 988312, 1191788, 1558492, 1884688, 1976624, 2383576, 3116984, 4767152, 5065099, 6233968, 10130198, 20260396, 40520792, 81041584]

約数ペア:

[(1, 81041584), (2, 40520792), (4, 20260396), (8, 10130198), (13, 6233968), (16, 5065099), (17, 4767152), (26, 3116984), (34, 2383576), (41, 1976624), (43, 1884688), (52, 1558492), (68, 1191788), (82, 988312), (86, 942344), (104, 779246), (136, 595894), (164, 494156), (169, 479536), (172, 471172), (208, 389623), (221, 366704), (272, 297947), (328, 247078), (338, 239768), (344, 235586), (442, 183352), (533, 152048), (559, 144976), (656, 123539), (676, 119884), (688, 117793), (697, 116272), (731, 110864), (884, 91676), (1066, 76024), (1118, 72488), (1352, 59942), (1394, 58136), (1462, 55432), (1763, 45968), (1768, 45838), (2132, 38012), (2236, 36244), (2704, 29971), (2788, 29068), (2873, 28208), (2924, 27716), (3526, 22984), (3536, 22919), (4264, 19006), (4472, 18122), (5576, 14534), (5746, 14104), (5848, 13858), (6929, 11696), (7052, 11492), (7267, 11152), (8528, 9503), (8944, 9061)]