242640720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1610

約数の個数: 240

約数和(自身を含む): 961938432

約数和(自身を除く): 719297712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 279, 280, 310, 315, 336, 360, 372, 420, 434, 465, 496, 504, 558, 560, 620, 630, 651, 720, 744, 840, 868, 930, 1008, 1085, 1116, 1240, 1260, 1302, 1395, 1488, 1553, 1680, 1736, 1860, 1953, 2170, 2232, 2480, 2520, 2604, 2790, 3106, 3255, 3472, 3720, 3906, 4340, 4464, 4659, 5040, 5208, 5580, 6212, 6510, 7440, 7765, 7812, 8680, 9318, 9765, 10416, 10871, 11160, 12424, 13020, 13977, 15530, 15624, 17360, 18636, 19530, 21742, 22320, 23295, 24848, 26040, 27954, 31060, 31248, 32613, 37272, 39060, 43484, 46590, 48143, 52080, 54355, 55908, 62120, 65226, 69885, 74544, 78120, 86968, 93180, 96286, 97839, 108710, 111816, 124240, 130452, 139770, 144429, 156240, 163065, 173936, 186360, 192572, 195678, 217420, 223632, 240715, 260904, 279540, 288858, 326130, 337001, 372720, 385144, 391356, 433287, 434840, 481430, 489195, 521808, 559080, 577716, 652260, 674002, 722145, 770288, 782712, 866574, 869680, 962860, 978390, 1011003, 1118160, 1155432, 1304520, 1348004, 1444290, 1565424, 1685005, 1733148, 1925720, 1956780, 2022006, 2166435, 2310864, 2609040, 2696008, 2888580, 3033009, 3370010, 3466296, 3851440, 3913560, 4044012, 4332870, 5055015, 5392016, 5777160, 6066018, 6740020, 6932592, 7827120, 8088024, 8665740, 10110030, 11554320, 12132036, 13480040, 15165045, 16176048, 17331480, 20220060, 24264072, 26960080, 30330090, 34662960, 40440120, 48528144, 60660180, 80880240, 121320360, 242640720]

約数ペア:

[(1, 242640720), (2, 121320360), (3, 80880240), (4, 60660180), (5, 48528144), (6, 40440120), (7, 34662960), (8, 30330090), (9, 26960080), (10, 24264072), (12, 20220060), (14, 17331480), (15, 16176048), (16, 15165045), (18, 13480040), (20, 12132036), (21, 11554320), (24, 10110030), (28, 8665740), (30, 8088024), (31, 7827120), (35, 6932592), (36, 6740020), (40, 6066018), (42, 5777160), (45, 5392016), (48, 5055015), (56, 4332870), (60, 4044012), (62, 3913560), (63, 3851440), (70, 3466296), (72, 3370010), (80, 3033009), (84, 2888580), (90, 2696008), (93, 2609040), (105, 2310864), (112, 2166435), (120, 2022006), (124, 1956780), (126, 1925720), (140, 1733148), (144, 1685005), (155, 1565424), (168, 1444290), (180, 1348004), (186, 1304520), (210, 1155432), (217, 1118160), (240, 1011003), (248, 978390), (252, 962860), (279, 869680), (280, 866574), (310, 782712), (315, 770288), (336, 722145), (360, 674002), (372, 652260), (420, 577716), (434, 559080), (465, 521808), (496, 489195), (504, 481430), (558, 434840), (560, 433287), (620, 391356), (630, 385144), (651, 372720), (720, 337001), (744, 326130), (840, 288858), (868, 279540), (930, 260904), (1008, 240715), (1085, 223632), (1116, 217420), (1240, 195678), (1260, 192572), (1302, 186360), (1395, 173936), (1488, 163065), (1553, 156240), (1680, 144429), (1736, 139770), (1860, 130452), (1953, 124240), (2170, 111816), (2232, 108710), (2480, 97839), (2520, 96286), (2604, 93180), (2790, 86968), (3106, 78120), (3255, 74544), (3472, 69885), (3720, 65226), (3906, 62120), (4340, 55908), (4464, 54355), (4659, 52080), (5040, 48143), (5208, 46590), (5580, 43484), (6212, 39060), (6510, 37272), (7440, 32613), (7765, 31248), (7812, 31060), (8680, 27954), (9318, 26040), (9765, 24848), (10416, 23295), (10871, 22320), (11160, 21742), (12424, 19530), (13020, 18636), (13977, 17360), (15530, 15624)]