81980752

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 189686272

約数和(自身を除く): 107705520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 73, 74, 112, 146, 148, 259, 271, 292, 296, 511, 518, 542, 584, 592, 1022, 1036, 1084, 1168, 1897, 2044, 2072, 2168, 2701, 3794, 4088, 4144, 4336, 5402, 7588, 8176, 10027, 10804, 15176, 18907, 19783, 20054, 21608, 30352, 37814, 39566, 40108, 43216, 70189, 75628, 79132, 80216, 138481, 140378, 151256, 158264, 160432, 276962, 280756, 302512, 316528, 553924, 561512, 731971, 1107848, 1123024, 1463942, 2215696, 2927884, 5123797, 5855768, 10247594, 11711536, 20495188, 40990376, 81980752]

約数ペア:

[(1, 81980752), (2, 40990376), (4, 20495188), (7, 11711536), (8, 10247594), (14, 5855768), (16, 5123797), (28, 2927884), (37, 2215696), (56, 1463942), (73, 1123024), (74, 1107848), (112, 731971), (146, 561512), (148, 553924), (259, 316528), (271, 302512), (292, 280756), (296, 276962), (511, 160432), (518, 158264), (542, 151256), (584, 140378), (592, 138481), (1022, 80216), (1036, 79132), (1084, 75628), (1168, 70189), (1897, 43216), (2044, 40108), (2072, 39566), (2168, 37814), (2701, 30352), (3794, 21608), (4088, 20054), (4144, 19783), (4336, 18907), (5402, 15176), (7588, 10804), (8176, 10027)]