81007290

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 240

約数和(自身を含む): 274610952

約数和(自身を除く): 193603662

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 49, 54, 63, 65, 70, 78, 81, 90, 91, 98, 105, 117, 126, 130, 135, 147, 157, 162, 182, 189, 195, 210, 234, 245, 270, 273, 294, 314, 315, 351, 378, 390, 405, 441, 455, 471, 490, 546, 567, 585, 630, 637, 702, 735, 785, 810, 819, 882, 910, 942, 945, 1053, 1099, 1134, 1170, 1274, 1323, 1365, 1413, 1470, 1570, 1638, 1755, 1890, 1911, 2041, 2106, 2198, 2205, 2355, 2457, 2646, 2730, 2826, 2835, 3185, 3297, 3510, 3822, 3969, 4082, 4095, 4239, 4410, 4710, 4914, 5265, 5495, 5670, 5733, 6123, 6370, 6594, 6615, 7065, 7371, 7693, 7938, 8190, 8478, 9555, 9891, 10205, 10530, 10990, 11466, 12246, 12285, 12717, 13230, 14130, 14287, 14742, 15386, 16485, 17199, 18369, 19110, 19782, 19845, 20410, 21195, 23079, 24570, 25434, 28574, 28665, 29673, 30615, 32970, 34398, 36738, 36855, 38465, 39690, 42390, 42861, 46158, 49455, 51597, 55107, 57330, 59346, 61230, 63585, 69237, 71435, 73710, 76930, 85722, 85995, 89019, 91845, 98910, 100009, 103194, 110214, 115395, 127170, 128583, 138474, 142870, 148365, 165321, 171990, 178038, 183690, 200018, 207711, 214305, 230790, 257166, 257985, 275535, 296730, 300027, 330642, 346185, 385749, 415422, 428610, 445095, 500045, 515970, 551070, 600054, 623133, 642915, 692370, 771498, 826605, 890190, 900081, 1000090, 1038555, 1157247, 1246266, 1285830, 1500135, 1653210, 1800162, 1928745, 2077110, 2314494, 2700243, 3000270, 3115665, 3857490, 4500405, 5400486, 5786235, 6231330, 8100729, 9000810, 11572470, 13501215, 16201458, 27002430, 40503645, 81007290]

約数ペア:

[(1, 81007290), (2, 40503645), (3, 27002430), (5, 16201458), (6, 13501215), (7, 11572470), (9, 9000810), (10, 8100729), (13, 6231330), (14, 5786235), (15, 5400486), (18, 4500405), (21, 3857490), (26, 3115665), (27, 3000270), (30, 2700243), (35, 2314494), (39, 2077110), (42, 1928745), (45, 1800162), (49, 1653210), (54, 1500135), (63, 1285830), (65, 1246266), (70, 1157247), (78, 1038555), (81, 1000090), (90, 900081), (91, 890190), (98, 826605), (105, 771498), (117, 692370), (126, 642915), (130, 623133), (135, 600054), (147, 551070), (157, 515970), (162, 500045), (182, 445095), (189, 428610), (195, 415422), (210, 385749), (234, 346185), (245, 330642), (270, 300027), (273, 296730), (294, 275535), (314, 257985), (315, 257166), (351, 230790), (378, 214305), (390, 207711), (405, 200018), (441, 183690), (455, 178038), (471, 171990), (490, 165321), (546, 148365), (567, 142870), (585, 138474), (630, 128583), (637, 127170), (702, 115395), (735, 110214), (785, 103194), (810, 100009), (819, 98910), (882, 91845), (910, 89019), (942, 85995), (945, 85722), (1053, 76930), (1099, 73710), (1134, 71435), (1170, 69237), (1274, 63585), (1323, 61230), (1365, 59346), (1413, 57330), (1470, 55107), (1570, 51597), (1638, 49455), (1755, 46158), (1890, 42861), (1911, 42390), (2041, 39690), (2106, 38465), (2198, 36855), (2205, 36738), (2355, 34398), (2457, 32970), (2646, 30615), (2730, 29673), (2826, 28665), (2835, 28574), (3185, 25434), (3297, 24570), (3510, 23079), (3822, 21195), (3969, 20410), (4082, 19845), (4095, 19782), (4239, 19110), (4410, 18369), (4710, 17199), (4914, 16485), (5265, 15386), (5495, 14742), (5670, 14287), (5733, 14130), (6123, 13230), (6370, 12717), (6594, 12285), (6615, 12246), (7065, 11466), (7371, 10990), (7693, 10530), (7938, 10205), (8190, 9891), (8478, 9555)]