28443688

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 38084312

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 89, 91, 104, 178, 182, 356, 364, 439, 623, 712, 728, 878, 1157, 1246, 1756, 2314, 2492, 3073, 3512, 4628, 4984, 5707, 6146, 8099, 9256, 11414, 12292, 16198, 22828, 24584, 32396, 39071, 39949, 45656, 64792, 78142, 79898, 156284, 159796, 273497, 312568, 319592, 507923, 546994, 1015846, 1093988, 2031692, 2187976, 3555461, 4063384, 7110922, 14221844, 28443688]

約数ペア:

[(1, 28443688), (2, 14221844), (4, 7110922), (7, 4063384), (8, 3555461), (13, 2187976), (14, 2031692), (26, 1093988), (28, 1015846), (52, 546994), (56, 507923), (89, 319592), (91, 312568), (104, 273497), (178, 159796), (182, 156284), (356, 79898), (364, 78142), (439, 64792), (623, 45656), (712, 39949), (728, 39071), (878, 32396), (1157, 24584), (1246, 22828), (1756, 16198), (2314, 12292), (2492, 11414), (3073, 9256), (3512, 8099), (4628, 6146), (4984, 5707)]