28702856

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 67132800

約数和(自身を除く): 38429944

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 89, 91, 104, 178, 182, 356, 364, 443, 623, 712, 728, 886, 1157, 1246, 1772, 2314, 2492, 3101, 3544, 4628, 4984, 5759, 6202, 8099, 9256, 11518, 12404, 16198, 23036, 24808, 32396, 39427, 40313, 46072, 64792, 78854, 80626, 157708, 161252, 275989, 315416, 322504, 512551, 551978, 1025102, 1103956, 2050204, 2207912, 3587857, 4100408, 7175714, 14351428, 28702856]

約数ペア:

[(1, 28702856), (2, 14351428), (4, 7175714), (7, 4100408), (8, 3587857), (13, 2207912), (14, 2050204), (26, 1103956), (28, 1025102), (52, 551978), (56, 512551), (89, 322504), (91, 315416), (104, 275989), (178, 161252), (182, 157708), (356, 80626), (364, 78854), (443, 64792), (623, 46072), (712, 40313), (728, 39427), (886, 32396), (1157, 24808), (1246, 23036), (1772, 16198), (2314, 12404), (2492, 11518), (3101, 9256), (3544, 8099), (4628, 6202), (4984, 5759)]