81107404

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1118

約数の個数: 48

約数和(自身を含む): 168878080

約数和(自身を除く): 87770676

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 79, 148, 158, 259, 316, 518, 553, 991, 1036, 1106, 1982, 2212, 2923, 3964, 5846, 6937, 11692, 13874, 20461, 27748, 36667, 40922, 73334, 78289, 81844, 146668, 156578, 256669, 313156, 513338, 548023, 1026676, 1096046, 2192092, 2896693, 5793386, 11586772, 20276851, 40553702, 81107404]

約数ペア:

[(1, 81107404), (2, 40553702), (4, 20276851), (7, 11586772), (14, 5793386), (28, 2896693), (37, 2192092), (74, 1096046), (79, 1026676), (148, 548023), (158, 513338), (259, 313156), (316, 256669), (518, 156578), (553, 146668), (991, 81844), (1036, 78289), (1106, 73334), (1982, 40922), (2212, 36667), (2923, 27748), (3964, 20461), (5846, 13874), (6937, 11692)]