81779236

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 184203936

約数和(自身を除く): 102424700

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 83, 98, 154, 166, 196, 308, 332, 457, 539, 581, 913, 914, 1078, 1162, 1826, 1828, 2156, 2324, 3199, 3652, 4067, 5027, 6391, 6398, 8134, 10054, 12782, 12796, 16268, 20108, 22393, 25564, 35189, 37931, 44737, 44786, 70378, 75862, 89474, 89572, 140756, 151724, 178948, 246323, 265517, 417241, 492646, 531034, 834482, 985292, 1062068, 1668964, 1858619, 2920687, 3717238, 5841374, 7434476, 11682748, 20444809, 40889618, 81779236]

約数ペア:

[(1, 81779236), (2, 40889618), (4, 20444809), (7, 11682748), (11, 7434476), (14, 5841374), (22, 3717238), (28, 2920687), (44, 1858619), (49, 1668964), (77, 1062068), (83, 985292), (98, 834482), (154, 531034), (166, 492646), (196, 417241), (308, 265517), (332, 246323), (457, 178948), (539, 151724), (581, 140756), (913, 89572), (914, 89474), (1078, 75862), (1162, 70378), (1826, 44786), (1828, 44737), (2156, 37931), (2324, 35189), (3199, 25564), (3652, 22393), (4067, 20108), (5027, 16268), (6391, 12796), (6398, 12782), (8134, 10054)]