81198780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5479}}^1$

素因数の和:5523

約数の個数: 96

約数和(自身を含む): 257779200

約数和(自身を除く): 176580420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 2470, 2964, 3705, 4940, 5479, 7410, 10958, 14820, 16437, 21916, 27395, 32874, 54790, 65748, 71227, 82185, 104101, 109580, 142454, 164370, 208202, 213681, 284908, 312303, 328740, 356135, 416404, 427362, 520505, 624606, 712270, 854724, 1041010, 1068405, 1249212, 1353313, 1424540, 1561515, 2082020, 2136810, 2706626, 3123030, 4059939, 4273620, 5413252, 6246060, 6766565, 8119878, 13533130, 16239756, 20299695, 27066260, 40599390, 81198780]

約数ペア:

[(1, 81198780), (2, 40599390), (3, 27066260), (4, 20299695), (5, 16239756), (6, 13533130), (10, 8119878), (12, 6766565), (13, 6246060), (15, 5413252), (19, 4273620), (20, 4059939), (26, 3123030), (30, 2706626), (38, 2136810), (39, 2082020), (52, 1561515), (57, 1424540), (60, 1353313), (65, 1249212), (76, 1068405), (78, 1041010), (95, 854724), (114, 712270), (130, 624606), (156, 520505), (190, 427362), (195, 416404), (228, 356135), (247, 328740), (260, 312303), (285, 284908), (380, 213681), (390, 208202), (494, 164370), (570, 142454), (741, 109580), (780, 104101), (988, 82185), (1140, 71227), (1235, 65748), (1482, 54790), (2470, 32874), (2964, 27395), (3705, 21916), (4940, 16437), (5479, 14820), (7410, 10958)]