28087164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{491}}^1$

素因数の和:735

約数の個数: 72

約数和(自身を含む): 81664128

約数和(自身を除く): 53576964

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 227, 252, 454, 491, 681, 908, 982, 1362, 1473, 1589, 1964, 2043, 2724, 2946, 3178, 3437, 4086, 4419, 4767, 5892, 6356, 6874, 8172, 8838, 9534, 10311, 13748, 14301, 17676, 19068, 20622, 28602, 30933, 41244, 57204, 61866, 111457, 123732, 222914, 334371, 445828, 668742, 780199, 1003113, 1337484, 1560398, 2006226, 2340597, 3120796, 4012452, 4681194, 7021791, 9362388, 14043582, 28087164]

約数ペア:

[(1, 28087164), (2, 14043582), (3, 9362388), (4, 7021791), (6, 4681194), (7, 4012452), (9, 3120796), (12, 2340597), (14, 2006226), (18, 1560398), (21, 1337484), (28, 1003113), (36, 780199), (42, 668742), (63, 445828), (84, 334371), (126, 222914), (227, 123732), (252, 111457), (454, 61866), (491, 57204), (681, 41244), (908, 30933), (982, 28602), (1362, 20622), (1473, 19068), (1589, 17676), (1964, 14301), (2043, 13748), (2724, 10311), (2946, 9534), (3178, 8838), (3437, 8172), (4086, 6874), (4419, 6356), (4767, 5892)]