261995760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1217}}^1$

素因数の和:1272

約数の個数: 240

約数和(自身を含む): 989561664

約数和(自身を除く): 727565904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 48, 52, 60, 65, 69, 72, 78, 80, 90, 92, 104, 115, 117, 120, 130, 138, 144, 156, 180, 184, 195, 207, 208, 230, 234, 240, 260, 276, 299, 312, 345, 360, 368, 390, 414, 460, 468, 520, 552, 585, 598, 624, 690, 720, 780, 828, 897, 920, 936, 1035, 1040, 1104, 1170, 1196, 1217, 1380, 1495, 1560, 1656, 1794, 1840, 1872, 2070, 2340, 2392, 2434, 2691, 2760, 2990, 3120, 3312, 3588, 3651, 4140, 4485, 4680, 4784, 4868, 5382, 5520, 5980, 6085, 7176, 7302, 8280, 8970, 9360, 9736, 10764, 10953, 11960, 12170, 13455, 14352, 14604, 15821, 16560, 17940, 18255, 19472, 21528, 21906, 23920, 24340, 26910, 27991, 29208, 31642, 35880, 36510, 43056, 43812, 47463, 48680, 53820, 54765, 55982, 58416, 63284, 71760, 73020, 79105, 83973, 87624, 94926, 97360, 107640, 109530, 111964, 126568, 139955, 142389, 146040, 158210, 167946, 175248, 189852, 215280, 219060, 223928, 237315, 251919, 253136, 279910, 284778, 292080, 316420, 335892, 363883, 379704, 419865, 438120, 447856, 474630, 503838, 559820, 569556, 632840, 671784, 711945, 727766, 759408, 839730, 876240, 949260, 1007676, 1091649, 1119640, 1139112, 1259595, 1265680, 1343568, 1423890, 1455532, 1679460, 1819415, 1898520, 2015352, 2183298, 2239280, 2278224, 2519190, 2847780, 2911064, 3274947, 3358920, 3638830, 3797040, 4030704, 4366596, 5038380, 5458245, 5695560, 5822128, 6549894, 6717840, 7277660, 8733192, 10076760, 10916490, 11391120, 13099788, 14555320, 16374735, 17466384, 20153520, 21832980, 26199576, 29110640, 32749470, 43665960, 52399152, 65498940, 87331920, 130997880, 261995760]

約数ペア:

[(1, 261995760), (2, 130997880), (3, 87331920), (4, 65498940), (5, 52399152), (6, 43665960), (8, 32749470), (9, 29110640), (10, 26199576), (12, 21832980), (13, 20153520), (15, 17466384), (16, 16374735), (18, 14555320), (20, 13099788), (23, 11391120), (24, 10916490), (26, 10076760), (30, 8733192), (36, 7277660), (39, 6717840), (40, 6549894), (45, 5822128), (46, 5695560), (48, 5458245), (52, 5038380), (60, 4366596), (65, 4030704), (69, 3797040), (72, 3638830), (78, 3358920), (80, 3274947), (90, 2911064), (92, 2847780), (104, 2519190), (115, 2278224), (117, 2239280), (120, 2183298), (130, 2015352), (138, 1898520), (144, 1819415), (156, 1679460), (180, 1455532), (184, 1423890), (195, 1343568), (207, 1265680), (208, 1259595), (230, 1139112), (234, 1119640), (240, 1091649), (260, 1007676), (276, 949260), (299, 876240), (312, 839730), (345, 759408), (360, 727766), (368, 711945), (390, 671784), (414, 632840), (460, 569556), (468, 559820), (520, 503838), (552, 474630), (585, 447856), (598, 438120), (624, 419865), (690, 379704), (720, 363883), (780, 335892), (828, 316420), (897, 292080), (920, 284778), (936, 279910), (1035, 253136), (1040, 251919), (1104, 237315), (1170, 223928), (1196, 219060), (1217, 215280), (1380, 189852), (1495, 175248), (1560, 167946), (1656, 158210), (1794, 146040), (1840, 142389), (1872, 139955), (2070, 126568), (2340, 111964), (2392, 109530), (2434, 107640), (2691, 97360), (2760, 94926), (2990, 87624), (3120, 83973), (3312, 79105), (3588, 73020), (3651, 71760), (4140, 63284), (4485, 58416), (4680, 55982), (4784, 54765), (4868, 53820), (5382, 48680), (5520, 47463), (5980, 43812), (6085, 43056), (7176, 36510), (7302, 35880), (8280, 31642), (8970, 29208), (9360, 27991), (9736, 26910), (10764, 24340), (10953, 23920), (11960, 21906), (12170, 21528), (13455, 19472), (14352, 18255), (14604, 17940), (15821, 16560)]