81538236

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2953}}^1$

素因数の和:3035

約数の個数: 72

約数和(自身を含む): 225803760

約数和(自身を除く): 144265524

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 59, 78, 117, 118, 156, 177, 234, 236, 354, 468, 531, 708, 767, 1062, 1534, 2124, 2301, 2953, 3068, 4602, 5906, 6903, 8859, 9204, 11812, 13806, 17718, 26577, 27612, 35436, 38389, 53154, 76778, 106308, 115167, 153556, 174227, 230334, 345501, 348454, 460668, 522681, 691002, 696908, 1045362, 1382004, 1568043, 2090724, 2264951, 3136086, 4529902, 6272172, 6794853, 9059804, 13589706, 20384559, 27179412, 40769118, 81538236]

約数ペア:

[(1, 81538236), (2, 40769118), (3, 27179412), (4, 20384559), (6, 13589706), (9, 9059804), (12, 6794853), (13, 6272172), (18, 4529902), (26, 3136086), (36, 2264951), (39, 2090724), (52, 1568043), (59, 1382004), (78, 1045362), (117, 696908), (118, 691002), (156, 522681), (177, 460668), (234, 348454), (236, 345501), (354, 230334), (468, 174227), (531, 153556), (708, 115167), (767, 106308), (1062, 76778), (1534, 53154), (2124, 38389), (2301, 35436), (2953, 27612), (3068, 26577), (4602, 17718), (5906, 13806), (6903, 11812), (8859, 9204)]