86181788

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 194431104

約数和(自身を除く): 108249316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 71, 77, 98, 142, 154, 196, 284, 308, 497, 539, 563, 781, 994, 1078, 1126, 1562, 1988, 2156, 2252, 3124, 3479, 3941, 5467, 6193, 6958, 7882, 10934, 12386, 13916, 15764, 21868, 24772, 27587, 38269, 39973, 43351, 55174, 76538, 79946, 86702, 110348, 153076, 159892, 173404, 279811, 303457, 439703, 559622, 606914, 879406, 1119244, 1213828, 1758812, 1958677, 3077921, 3917354, 6155842, 7834708, 12311684, 21545447, 43090894, 86181788]

約数ペア:

[(1, 86181788), (2, 43090894), (4, 21545447), (7, 12311684), (11, 7834708), (14, 6155842), (22, 3917354), (28, 3077921), (44, 1958677), (49, 1758812), (71, 1213828), (77, 1119244), (98, 879406), (142, 606914), (154, 559622), (196, 439703), (284, 303457), (308, 279811), (497, 173404), (539, 159892), (563, 153076), (781, 110348), (994, 86702), (1078, 79946), (1126, 76538), (1562, 55174), (1988, 43351), (2156, 39973), (2252, 38269), (3124, 27587), (3479, 24772), (3941, 21868), (5467, 15764), (6193, 13916), (6958, 12386), (7882, 10934)]