81786852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{661}}^1$

素因数の和:1169

約数の個数: 72

約数和(自身を含む): 237112512

約数和(自身を除く): 155325660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 491, 661, 982, 1322, 1473, 1964, 1983, 2644, 2946, 3437, 3966, 4419, 4627, 5892, 5949, 6874, 7932, 8838, 9254, 10311, 11898, 13748, 13881, 17676, 18508, 20622, 23796, 27762, 30933, 41244, 41643, 55524, 61866, 83286, 123732, 166572, 324551, 649102, 973653, 1298204, 1947306, 2271857, 2920959, 3894612, 4543714, 5841918, 6815571, 9087428, 11683836, 13631142, 20446713, 27262284, 40893426, 81786852]

約数ペア:

[(1, 81786852), (2, 40893426), (3, 27262284), (4, 20446713), (6, 13631142), (7, 11683836), (9, 9087428), (12, 6815571), (14, 5841918), (18, 4543714), (21, 3894612), (28, 2920959), (36, 2271857), (42, 1947306), (63, 1298204), (84, 973653), (126, 649102), (252, 324551), (491, 166572), (661, 123732), (982, 83286), (1322, 61866), (1473, 55524), (1964, 41643), (1983, 41244), (2644, 30933), (2946, 27762), (3437, 23796), (3966, 20622), (4419, 18508), (4627, 17676), (5892, 13881), (5949, 13748), (6874, 11898), (7932, 10311), (8838, 9254)]