28400988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4391}}^1$

素因数の和:4423

約数の個数: 72

約数和(自身を含む): 84115584

約数和(自身を除く): 55714596

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 132, 147, 154, 196, 231, 294, 308, 462, 539, 588, 924, 1078, 1617, 2156, 3234, 4391, 6468, 8782, 13173, 17564, 26346, 30737, 48301, 52692, 61474, 92211, 96602, 122948, 144903, 184422, 193204, 215159, 289806, 338107, 368844, 430318, 579612, 645477, 676214, 860636, 1014321, 1290954, 1352428, 2028642, 2366749, 2581908, 4057284, 4733498, 7100247, 9466996, 14200494, 28400988]

約数ペア:

[(1, 28400988), (2, 14200494), (3, 9466996), (4, 7100247), (6, 4733498), (7, 4057284), (11, 2581908), (12, 2366749), (14, 2028642), (21, 1352428), (22, 1290954), (28, 1014321), (33, 860636), (42, 676214), (44, 645477), (49, 579612), (66, 430318), (77, 368844), (84, 338107), (98, 289806), (132, 215159), (147, 193204), (154, 184422), (196, 144903), (231, 122948), (294, 96602), (308, 92211), (462, 61474), (539, 52692), (588, 48301), (924, 30737), (1078, 26346), (1617, 17564), (2156, 13173), (3234, 8782), (4391, 6468)]