28109328

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 79119936

約数和(自身を除く): 51010608

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 107, 156, 208, 214, 312, 321, 421, 428, 624, 642, 842, 856, 1263, 1284, 1391, 1684, 1712, 2526, 2568, 2782, 3368, 4173, 5052, 5136, 5473, 5564, 6736, 8346, 10104, 10946, 11128, 16419, 16692, 20208, 21892, 22256, 32838, 33384, 43784, 45047, 65676, 66768, 87568, 90094, 131352, 135141, 180188, 262704, 270282, 360376, 540564, 585611, 720752, 1081128, 1171222, 1756833, 2162256, 2342444, 3513666, 4684888, 7027332, 9369776, 14054664, 28109328]

約数ペア:

[(1, 28109328), (2, 14054664), (3, 9369776), (4, 7027332), (6, 4684888), (8, 3513666), (12, 2342444), (13, 2162256), (16, 1756833), (24, 1171222), (26, 1081128), (39, 720752), (48, 585611), (52, 540564), (78, 360376), (104, 270282), (107, 262704), (156, 180188), (208, 135141), (214, 131352), (312, 90094), (321, 87568), (421, 66768), (428, 65676), (624, 45047), (642, 43784), (842, 33384), (856, 32838), (1263, 22256), (1284, 21892), (1391, 20208), (1684, 16692), (1712, 16419), (2526, 11128), (2568, 10946), (2782, 10104), (3368, 8346), (4173, 6736), (5052, 5564), (5136, 5473)]