81495876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 96

約数和(自身を含む): 239984640

約数和(自身を除く): 158488764

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 89, 132, 154, 178, 231, 267, 308, 356, 462, 534, 623, 924, 979, 991, 1068, 1246, 1869, 1958, 1982, 2492, 2937, 2973, 3738, 3916, 3964, 5874, 5946, 6853, 6937, 7476, 10901, 11748, 11892, 13706, 13874, 20559, 20811, 21802, 27412, 27748, 32703, 41118, 41622, 43604, 65406, 76307, 82236, 83244, 88199, 130812, 152614, 176398, 228921, 264597, 305228, 352796, 457842, 529194, 617393, 915684, 970189, 1058388, 1234786, 1852179, 1940378, 2469572, 2910567, 3704358, 3880756, 5821134, 6791323, 7408716, 11642268, 13582646, 20373969, 27165292, 40747938, 81495876]

約数ペア:

[(1, 81495876), (2, 40747938), (3, 27165292), (4, 20373969), (6, 13582646), (7, 11642268), (11, 7408716), (12, 6791323), (14, 5821134), (21, 3880756), (22, 3704358), (28, 2910567), (33, 2469572), (42, 1940378), (44, 1852179), (66, 1234786), (77, 1058388), (84, 970189), (89, 915684), (132, 617393), (154, 529194), (178, 457842), (231, 352796), (267, 305228), (308, 264597), (356, 228921), (462, 176398), (534, 152614), (623, 130812), (924, 88199), (979, 83244), (991, 82236), (1068, 76307), (1246, 65406), (1869, 43604), (1958, 41622), (1982, 41118), (2492, 32703), (2937, 27748), (2973, 27412), (3738, 21802), (3916, 20811), (3964, 20559), (5874, 13874), (5946, 13706), (6853, 11892), (6937, 11748), (7476, 10901)]