81862560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4373}}^1$

素因数の和:4407

約数の個数: 144

約数和(自身を含む): 300913704

約数和(自身を除く): 219051144

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4373, 4680, 6240, 8746, 9360, 13119, 17492, 18720, 21865, 26238, 34984, 39357, 43730, 52476, 56849, 65595, 69968, 78714, 87460, 104952, 113698, 131190, 139936, 157428, 170547, 174920, 196785, 209904, 227396, 262380, 284245, 314856, 341094, 349840, 393570, 419808, 454792, 511641, 524760, 568490, 629712, 682188, 699680, 787140, 852735, 909584, 1023282, 1049520, 1136980, 1259424, 1364376, 1574280, 1705470, 1819168, 2046564, 2099040, 2273960, 2558205, 2728752, 3148560, 3410940, 4093128, 4547920, 5116410, 5457504, 6297120, 6821880, 8186256, 9095840, 10232820, 13643760, 16372512, 20465640, 27287520, 40931280, 81862560]

約数ペア:

[(1, 81862560), (2, 40931280), (3, 27287520), (4, 20465640), (5, 16372512), (6, 13643760), (8, 10232820), (9, 9095840), (10, 8186256), (12, 6821880), (13, 6297120), (15, 5457504), (16, 5116410), (18, 4547920), (20, 4093128), (24, 3410940), (26, 3148560), (30, 2728752), (32, 2558205), (36, 2273960), (39, 2099040), (40, 2046564), (45, 1819168), (48, 1705470), (52, 1574280), (60, 1364376), (65, 1259424), (72, 1136980), (78, 1049520), (80, 1023282), (90, 909584), (96, 852735), (104, 787140), (117, 699680), (120, 682188), (130, 629712), (144, 568490), (156, 524760), (160, 511641), (180, 454792), (195, 419808), (208, 393570), (234, 349840), (240, 341094), (260, 314856), (288, 284245), (312, 262380), (360, 227396), (390, 209904), (416, 196785), (468, 174920), (480, 170547), (520, 157428), (585, 139936), (624, 131190), (720, 113698), (780, 104952), (936, 87460), (1040, 78714), (1170, 69968), (1248, 65595), (1440, 56849), (1560, 52476), (1872, 43730), (2080, 39357), (2340, 34984), (3120, 26238), (3744, 21865), (4373, 18720), (4680, 17492), (6240, 13119), (8746, 9360)]