81231472

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 186988032

約数和(自身を除く): 105756560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 101, 112, 167, 172, 202, 301, 334, 344, 404, 602, 668, 688, 707, 808, 1169, 1204, 1336, 1414, 1616, 2338, 2408, 2672, 2828, 4343, 4676, 4816, 5656, 7181, 8686, 9352, 11312, 14362, 16867, 17372, 18704, 28724, 30401, 33734, 34744, 50267, 57448, 60802, 67468, 69488, 100534, 114896, 118069, 121604, 134936, 201068, 236138, 243208, 269872, 402136, 472276, 486416, 725281, 804272, 944552, 1450562, 1889104, 2901124, 5076967, 5802248, 10153934, 11604496, 20307868, 40615736, 81231472]

約数ペア:

[(1, 81231472), (2, 40615736), (4, 20307868), (7, 11604496), (8, 10153934), (14, 5802248), (16, 5076967), (28, 2901124), (43, 1889104), (56, 1450562), (86, 944552), (101, 804272), (112, 725281), (167, 486416), (172, 472276), (202, 402136), (301, 269872), (334, 243208), (344, 236138), (404, 201068), (602, 134936), (668, 121604), (688, 118069), (707, 114896), (808, 100534), (1169, 69488), (1204, 67468), (1336, 60802), (1414, 57448), (1616, 50267), (2338, 34744), (2408, 33734), (2672, 30401), (2828, 28724), (4343, 18704), (4676, 17372), (4816, 16867), (5656, 14362), (7181, 11312), (8686, 9352)]