81381204

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:725

約数の個数: 72

約数和(自身を含む): 213621408

約数和(自身を除く): 132240204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 107, 111, 148, 214, 222, 321, 333, 428, 444, 571, 642, 666, 963, 1142, 1284, 1332, 1713, 1926, 2284, 3426, 3852, 3959, 5139, 6852, 7918, 10278, 11877, 15836, 20556, 21127, 23754, 35631, 42254, 47508, 61097, 63381, 71262, 84508, 122194, 126762, 142524, 183291, 190143, 244388, 253524, 366582, 380286, 549873, 733164, 760572, 1099746, 2199492, 2260589, 4521178, 6781767, 9042356, 13563534, 20345301, 27127068, 40690602, 81381204]

約数ペア:

[(1, 81381204), (2, 40690602), (3, 27127068), (4, 20345301), (6, 13563534), (9, 9042356), (12, 6781767), (18, 4521178), (36, 2260589), (37, 2199492), (74, 1099746), (107, 760572), (111, 733164), (148, 549873), (214, 380286), (222, 366582), (321, 253524), (333, 244388), (428, 190143), (444, 183291), (571, 142524), (642, 126762), (666, 122194), (963, 84508), (1142, 71262), (1284, 63381), (1332, 61097), (1713, 47508), (1926, 42254), (2284, 35631), (3426, 23754), (3852, 21127), (3959, 20556), (5139, 15836), (6852, 11877), (7918, 10278)]