81581955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1013}}^1$

素因数の和:1100

約数の個数: 64

約数和(自身を含む): 163537920

約数和(自身を除く): 81955965

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 59, 65, 91, 105, 177, 195, 273, 295, 413, 455, 767, 885, 1013, 1239, 1365, 2065, 2301, 3039, 3835, 5065, 5369, 6195, 7091, 11505, 13169, 15195, 16107, 21273, 26845, 35455, 39507, 59767, 65845, 80535, 92183, 106365, 179301, 197535, 276549, 298835, 418369, 460915, 776971, 896505, 1255107, 1382745, 2091845, 2330913, 3884855, 5438797, 6275535, 11654565, 16316391, 27193985, 81581955]

約数ペア:

[(1, 81581955), (3, 27193985), (5, 16316391), (7, 11654565), (13, 6275535), (15, 5438797), (21, 3884855), (35, 2330913), (39, 2091845), (59, 1382745), (65, 1255107), (91, 896505), (105, 776971), (177, 460915), (195, 418369), (273, 298835), (295, 276549), (413, 197535), (455, 179301), (767, 106365), (885, 92183), (1013, 80535), (1239, 65845), (1365, 59767), (2065, 39507), (2301, 35455), (3039, 26845), (3835, 21273), (5065, 16107), (5369, 15195), (6195, 13169), (7091, 11505)]