261737280

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{12983}}^1$

素因数の和:13013

約数の個数: 168

約数和(自身を含む): 1028956032

約数和(自身を除く): 767218752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 12983, 20160, 25966, 38949, 51932, 64915, 77898, 90881, 103864, 116847, 129830, 155796, 181762, 194745, 207728, 233694, 259660, 272643, 311592, 363524, 389490, 415456, 454405, 467388, 519320, 545286, 584235, 623184, 727048, 778980, 817929, 830912, 908810, 934776, 1038640, 1090572, 1168470, 1246368, 1363215, 1454096, 1557960, 1635858, 1817620, 1869552, 2077280, 2181144, 2336940, 2492736, 2726430, 2908192, 3115920, 3271716, 3635240, 3739104, 4089645, 4154560, 4362288, 4673880, 5452860, 5816384, 6231840, 6543432, 7270480, 7478208, 8179290, 8724576, 9347760, 10905720, 12463680, 13086864, 14540960, 16358580, 17449152, 18695520, 21811440, 26173728, 29081920, 32717160, 37391040, 43622880, 52347456, 65434320, 87245760, 130868640, 261737280]

約数ペア:

[(1, 261737280), (2, 130868640), (3, 87245760), (4, 65434320), (5, 52347456), (6, 43622880), (7, 37391040), (8, 32717160), (9, 29081920), (10, 26173728), (12, 21811440), (14, 18695520), (15, 17449152), (16, 16358580), (18, 14540960), (20, 13086864), (21, 12463680), (24, 10905720), (28, 9347760), (30, 8724576), (32, 8179290), (35, 7478208), (36, 7270480), (40, 6543432), (42, 6231840), (45, 5816384), (48, 5452860), (56, 4673880), (60, 4362288), (63, 4154560), (64, 4089645), (70, 3739104), (72, 3635240), (80, 3271716), (84, 3115920), (90, 2908192), (96, 2726430), (105, 2492736), (112, 2336940), (120, 2181144), (126, 2077280), (140, 1869552), (144, 1817620), (160, 1635858), (168, 1557960), (180, 1454096), (192, 1363215), (210, 1246368), (224, 1168470), (240, 1090572), (252, 1038640), (280, 934776), (288, 908810), (315, 830912), (320, 817929), (336, 778980), (360, 727048), (420, 623184), (448, 584235), (480, 545286), (504, 519320), (560, 467388), (576, 454405), (630, 415456), (672, 389490), (720, 363524), (840, 311592), (960, 272643), (1008, 259660), (1120, 233694), (1260, 207728), (1344, 194745), (1440, 181762), (1680, 155796), (2016, 129830), (2240, 116847), (2520, 103864), (2880, 90881), (3360, 77898), (4032, 64915), (5040, 51932), (6720, 38949), (10080, 25966), (12983, 20160)]