81987984

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^2\times {\mathrm{1123}}^1$

素因数の和:1166

約数の個数: 120

約数和(自身を含む): 255058080

約数和(自身を除く): 173070096

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 104, 108, 117, 144, 156, 169, 208, 216, 234, 312, 338, 351, 432, 468, 507, 624, 676, 702, 936, 1014, 1123, 1352, 1404, 1521, 1872, 2028, 2246, 2704, 2808, 3042, 3369, 4056, 4492, 4563, 5616, 6084, 6738, 8112, 8984, 9126, 10107, 12168, 13476, 14599, 17968, 18252, 20214, 24336, 26952, 29198, 30321, 36504, 40428, 43797, 53904, 58396, 60642, 73008, 80856, 87594, 116792, 121284, 131391, 161712, 175188, 189787, 233584, 242568, 262782, 350376, 379574, 394173, 485136, 525564, 569361, 700752, 759148, 788346, 1051128, 1138722, 1518296, 1576692, 1708083, 2102256, 2277444, 3036592, 3153384, 3416166, 4554888, 5124249, 6306768, 6832332, 9109776, 10248498, 13664664, 20496996, 27329328, 40993992, 81987984]

約数ペア:

[(1, 81987984), (2, 40993992), (3, 27329328), (4, 20496996), (6, 13664664), (8, 10248498), (9, 9109776), (12, 6832332), (13, 6306768), (16, 5124249), (18, 4554888), (24, 3416166), (26, 3153384), (27, 3036592), (36, 2277444), (39, 2102256), (48, 1708083), (52, 1576692), (54, 1518296), (72, 1138722), (78, 1051128), (104, 788346), (108, 759148), (117, 700752), (144, 569361), (156, 525564), (169, 485136), (208, 394173), (216, 379574), (234, 350376), (312, 262782), (338, 242568), (351, 233584), (432, 189787), (468, 175188), (507, 161712), (624, 131391), (676, 121284), (702, 116792), (936, 87594), (1014, 80856), (1123, 73008), (1352, 60642), (1404, 58396), (1521, 53904), (1872, 43797), (2028, 40428), (2246, 36504), (2704, 30321), (2808, 29198), (3042, 26952), (3369, 24336), (4056, 20214), (4492, 18252), (4563, 17968), (5616, 14599), (6084, 13476), (6738, 12168), (8112, 10107), (8984, 9126)]