1780781520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{929}}^1$

素因数の和:1122

約数の個数: 240

約数和(自身を含む): 6468068160

約数和(自身を除く): 4687286640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 163, 168, 196, 210, 240, 245, 280, 294, 326, 336, 392, 420, 489, 490, 560, 588, 652, 735, 784, 815, 840, 929, 978, 980, 1141, 1176, 1304, 1470, 1630, 1680, 1858, 1956, 1960, 2282, 2352, 2445, 2608, 2787, 2940, 3260, 3423, 3716, 3912, 3920, 4564, 4645, 4890, 5574, 5705, 5880, 6503, 6520, 6846, 7432, 7824, 7987, 9128, 9290, 9780, 11148, 11410, 11760, 13006, 13040, 13692, 13935, 14864, 15974, 17115, 18256, 18580, 19509, 19560, 22296, 22820, 23961, 26012, 27384, 27870, 31948, 32515, 34230, 37160, 39018, 39120, 39935, 44592, 45521, 45640, 47922, 52024, 54768, 55740, 63896, 65030, 68460, 74320, 78036, 79870, 91042, 91280, 95844, 97545, 104048, 111480, 119805, 127792, 130060, 136563, 136920, 151427, 156072, 159740, 182084, 191688, 195090, 222960, 227605, 239610, 260120, 273126, 273840, 302854, 312144, 319480, 364168, 383376, 390180, 454281, 455210, 479220, 520240, 546252, 605708, 638960, 682815, 728336, 757135, 780360, 908562, 910420, 958440, 1059989, 1092504, 1211416, 1365630, 1514270, 1560720, 1817124, 1820840, 1916880, 2119978, 2185008, 2271405, 2422832, 2731260, 3028540, 3179967, 3634248, 3641680, 4239956, 4542810, 5299945, 5462520, 6057080, 6359934, 7268496, 7419923, 8479912, 9085620, 10599890, 10925040, 12114160, 12719868, 14839846, 15899835, 16959824, 18171240, 21199780, 22259769, 25439736, 29679692, 31799670, 36342480, 37099615, 42399560, 44519538, 50879472, 59359384, 63599340, 74199230, 84799120, 89039076, 111298845, 118718768, 127198680, 148398460, 178078152, 222597690, 254397360, 296796920, 356156304, 445195380, 593593840, 890390760, 1780781520]

約数ペア:

[(1, 1780781520), (2, 890390760), (3, 593593840), (4, 445195380), (5, 356156304), (6, 296796920), (7, 254397360), (8, 222597690), (10, 178078152), (12, 148398460), (14, 127198680), (15, 118718768), (16, 111298845), (20, 89039076), (21, 84799120), (24, 74199230), (28, 63599340), (30, 59359384), (35, 50879472), (40, 44519538), (42, 42399560), (48, 37099615), (49, 36342480), (56, 31799670), (60, 29679692), (70, 25439736), (80, 22259769), (84, 21199780), (98, 18171240), (105, 16959824), (112, 15899835), (120, 14839846), (140, 12719868), (147, 12114160), (163, 10925040), (168, 10599890), (196, 9085620), (210, 8479912), (240, 7419923), (245, 7268496), (280, 6359934), (294, 6057080), (326, 5462520), (336, 5299945), (392, 4542810), (420, 4239956), (489, 3641680), (490, 3634248), (560, 3179967), (588, 3028540), (652, 2731260), (735, 2422832), (784, 2271405), (815, 2185008), (840, 2119978), (929, 1916880), (978, 1820840), (980, 1817124), (1141, 1560720), (1176, 1514270), (1304, 1365630), (1470, 1211416), (1630, 1092504), (1680, 1059989), (1858, 958440), (1956, 910420), (1960, 908562), (2282, 780360), (2352, 757135), (2445, 728336), (2608, 682815), (2787, 638960), (2940, 605708), (3260, 546252), (3423, 520240), (3716, 479220), (3912, 455210), (3920, 454281), (4564, 390180), (4645, 383376), (4890, 364168), (5574, 319480), (5705, 312144), (5880, 302854), (6503, 273840), (6520, 273126), (6846, 260120), (7432, 239610), (7824, 227605), (7987, 222960), (9128, 195090), (9290, 191688), (9780, 182084), (11148, 159740), (11410, 156072), (11760, 151427), (13006, 136920), (13040, 136563), (13692, 130060), (13935, 127792), (14864, 119805), (15974, 111480), (17115, 104048), (18256, 97545), (18580, 95844), (19509, 91280), (19560, 91042), (22296, 79870), (22820, 78036), (23961, 74320), (26012, 68460), (27384, 65030), (27870, 63896), (31948, 55740), (32515, 54768), (34230, 52024), (37160, 47922), (39018, 45640), (39120, 45521), (39935, 44592)]