261165840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 240

約数和(自身を含む): 901870848

約数和(自身を除く): 640705008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 47, 48, 52, 60, 65, 78, 80, 94, 104, 120, 130, 137, 141, 156, 169, 188, 195, 208, 235, 240, 260, 274, 282, 312, 338, 376, 390, 411, 470, 507, 520, 548, 564, 611, 624, 676, 685, 705, 752, 780, 822, 845, 940, 1014, 1040, 1096, 1128, 1222, 1352, 1370, 1410, 1560, 1644, 1690, 1781, 1833, 1880, 2028, 2055, 2192, 2256, 2444, 2535, 2704, 2740, 2820, 3055, 3120, 3288, 3380, 3562, 3666, 3760, 4056, 4110, 4888, 5070, 5343, 5480, 5640, 6110, 6439, 6576, 6760, 7124, 7332, 7943, 8112, 8220, 8905, 9165, 9776, 10140, 10686, 10960, 11280, 12220, 12878, 13520, 14248, 14664, 15886, 16440, 17810, 18330, 19317, 20280, 21372, 23153, 23829, 24440, 25756, 26715, 28496, 29328, 31772, 32195, 32880, 35620, 36660, 38634, 39715, 40560, 42744, 46306, 47658, 48880, 51512, 53430, 63544, 64390, 69459, 71240, 73320, 77268, 79430, 83707, 85488, 92612, 95316, 96585, 103024, 106860, 115765, 119145, 127088, 128780, 138918, 142480, 146640, 154536, 158860, 167414, 185224, 190632, 193170, 213720, 231530, 238290, 251121, 257560, 277836, 309072, 317720, 334828, 347295, 370448, 381264, 386340, 418535, 427440, 463060, 476580, 502242, 515120, 555672, 635440, 669656, 694590, 772680, 837070, 926120, 953160, 1004484, 1088191, 1111344, 1255605, 1339312, 1389180, 1545360, 1674140, 1852240, 1906320, 2008968, 2176382, 2511210, 2778360, 3264573, 3348280, 4017936, 4352764, 5022420, 5440955, 5556720, 6529146, 6696560, 8705528, 10044840, 10881910, 13058292, 16322865, 17411056, 20089680, 21763820, 26116584, 32645730, 43527640, 52233168, 65291460, 87055280, 130582920, 261165840]

約数ペア:

[(1, 261165840), (2, 130582920), (3, 87055280), (4, 65291460), (5, 52233168), (6, 43527640), (8, 32645730), (10, 26116584), (12, 21763820), (13, 20089680), (15, 17411056), (16, 16322865), (20, 13058292), (24, 10881910), (26, 10044840), (30, 8705528), (39, 6696560), (40, 6529146), (47, 5556720), (48, 5440955), (52, 5022420), (60, 4352764), (65, 4017936), (78, 3348280), (80, 3264573), (94, 2778360), (104, 2511210), (120, 2176382), (130, 2008968), (137, 1906320), (141, 1852240), (156, 1674140), (169, 1545360), (188, 1389180), (195, 1339312), (208, 1255605), (235, 1111344), (240, 1088191), (260, 1004484), (274, 953160), (282, 926120), (312, 837070), (338, 772680), (376, 694590), (390, 669656), (411, 635440), (470, 555672), (507, 515120), (520, 502242), (548, 476580), (564, 463060), (611, 427440), (624, 418535), (676, 386340), (685, 381264), (705, 370448), (752, 347295), (780, 334828), (822, 317720), (845, 309072), (940, 277836), (1014, 257560), (1040, 251121), (1096, 238290), (1128, 231530), (1222, 213720), (1352, 193170), (1370, 190632), (1410, 185224), (1560, 167414), (1644, 158860), (1690, 154536), (1781, 146640), (1833, 142480), (1880, 138918), (2028, 128780), (2055, 127088), (2192, 119145), (2256, 115765), (2444, 106860), (2535, 103024), (2704, 96585), (2740, 95316), (2820, 92612), (3055, 85488), (3120, 83707), (3288, 79430), (3380, 77268), (3562, 73320), (3666, 71240), (3760, 69459), (4056, 64390), (4110, 63544), (4888, 53430), (5070, 51512), (5343, 48880), (5480, 47658), (5640, 46306), (6110, 42744), (6439, 40560), (6576, 39715), (6760, 38634), (7124, 36660), (7332, 35620), (7943, 32880), (8112, 32195), (8220, 31772), (8905, 29328), (9165, 28496), (9776, 26715), (10140, 25756), (10686, 24440), (10960, 23829), (11280, 23153), (12220, 21372), (12878, 20280), (13520, 19317), (14248, 18330), (14664, 17810), (15886, 16440)]