281920356

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{1063}}^1$

素因数の和:1265

約数の個数: 72

約数和(自身を含む): 731989440

約数和(自身を除く): 450069084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 139, 159, 212, 278, 318, 417, 477, 556, 636, 834, 954, 1063, 1251, 1668, 1908, 2126, 2502, 3189, 4252, 5004, 6378, 7367, 9567, 12756, 14734, 19134, 22101, 29468, 38268, 44202, 56339, 66303, 88404, 112678, 132606, 147757, 169017, 225356, 265212, 295514, 338034, 443271, 507051, 591028, 676068, 886542, 1014102, 1329813, 1773084, 2028204, 2659626, 5319252, 7831121, 15662242, 23493363, 31324484, 46986726, 70480089, 93973452, 140960178, 281920356]

約数ペア:

[(1, 281920356), (2, 140960178), (3, 93973452), (4, 70480089), (6, 46986726), (9, 31324484), (12, 23493363), (18, 15662242), (36, 7831121), (53, 5319252), (106, 2659626), (139, 2028204), (159, 1773084), (212, 1329813), (278, 1014102), (318, 886542), (417, 676068), (477, 591028), (556, 507051), (636, 443271), (834, 338034), (954, 295514), (1063, 265212), (1251, 225356), (1668, 169017), (1908, 147757), (2126, 132606), (2502, 112678), (3189, 88404), (4252, 66303), (5004, 56339), (6378, 44202), (7367, 38268), (9567, 29468), (12756, 22101), (14734, 19134)]