20169848320

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:257

約数の個数: 240

約数和(自身を含む): 51186746160

約数和(自身を除く): 31016897840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 43, 64, 80, 82, 86, 109, 128, 160, 164, 172, 205, 215, 218, 256, 320, 328, 344, 410, 430, 436, 512, 545, 640, 656, 688, 820, 860, 872, 1090, 1280, 1312, 1376, 1640, 1681, 1720, 1744, 1763, 2180, 2560, 2624, 2752, 3280, 3362, 3440, 3488, 3526, 4360, 4469, 4687, 5248, 5504, 6560, 6724, 6880, 6976, 7052, 8405, 8720, 8815, 8938, 9374, 10496, 11008, 13120, 13448, 13760, 13952, 14104, 16810, 17440, 17630, 17876, 18748, 20992, 22016, 22345, 23435, 26240, 26896, 27520, 27904, 28208, 33620, 34880, 35260, 35752, 37496, 44690, 46870, 52480, 53792, 55040, 55808, 56416, 67240, 69760, 70520, 71504, 72283, 74992, 89380, 93740, 104960, 107584, 110080, 112832, 134480, 139520, 141040, 143008, 144566, 149984, 178760, 183229, 187480, 192167, 215168, 225664, 268960, 279040, 282080, 286016, 289132, 299968, 357520, 361415, 366458, 374960, 384334, 430336, 451328, 537920, 564160, 572032, 578264, 599936, 715040, 722830, 732916, 749920, 768668, 860672, 902656, 916145, 960835, 1075840, 1128320, 1144064, 1156528, 1199872, 1430080, 1445660, 1465832, 1499840, 1537336, 1832290, 1921670, 2151680, 2256640, 2288128, 2313056, 2399744, 2860160, 2891320, 2931664, 2999680, 3074672, 3664580, 3843340, 4303360, 4513280, 4626112, 5720320, 5782640, 5863328, 5999360, 6149344, 7329160, 7686680, 7878847, 9252224, 11440640, 11565280, 11726656, 11998720, 12298688, 14658320, 15373360, 15757694, 18504448, 23130560, 23453312, 24597376, 29316640, 30746720, 31515388, 37008896, 39394235, 46261120, 46906624, 49194752, 58633280, 61493440, 63030776, 78788470, 92522240, 93813248, 98389504, 117266560, 122986880, 126061552, 157576940, 185044480, 234533120, 245973760, 252123104, 315153880, 469066240, 491947520, 504246208, 630307760, 1008492416, 1260615520, 2016984832, 2521231040, 4033969664, 5042462080, 10084924160, 20169848320]

約数ペア:

[(1, 20169848320), (2, 10084924160), (4, 5042462080), (5, 4033969664), (8, 2521231040), (10, 2016984832), (16, 1260615520), (20, 1008492416), (32, 630307760), (40, 504246208), (41, 491947520), (43, 469066240), (64, 315153880), (80, 252123104), (82, 245973760), (86, 234533120), (109, 185044480), (128, 157576940), (160, 126061552), (164, 122986880), (172, 117266560), (205, 98389504), (215, 93813248), (218, 92522240), (256, 78788470), (320, 63030776), (328, 61493440), (344, 58633280), (410, 49194752), (430, 46906624), (436, 46261120), (512, 39394235), (545, 37008896), (640, 31515388), (656, 30746720), (688, 29316640), (820, 24597376), (860, 23453312), (872, 23130560), (1090, 18504448), (1280, 15757694), (1312, 15373360), (1376, 14658320), (1640, 12298688), (1681, 11998720), (1720, 11726656), (1744, 11565280), (1763, 11440640), (2180, 9252224), (2560, 7878847), (2624, 7686680), (2752, 7329160), (3280, 6149344), (3362, 5999360), (3440, 5863328), (3488, 5782640), (3526, 5720320), (4360, 4626112), (4469, 4513280), (4687, 4303360), (5248, 3843340), (5504, 3664580), (6560, 3074672), (6724, 2999680), (6880, 2931664), (6976, 2891320), (7052, 2860160), (8405, 2399744), (8720, 2313056), (8815, 2288128), (8938, 2256640), (9374, 2151680), (10496, 1921670), (11008, 1832290), (13120, 1537336), (13448, 1499840), (13760, 1465832), (13952, 1445660), (14104, 1430080), (16810, 1199872), (17440, 1156528), (17630, 1144064), (17876, 1128320), (18748, 1075840), (20992, 960835), (22016, 916145), (22345, 902656), (23435, 860672), (26240, 768668), (26896, 749920), (27520, 732916), (27904, 722830), (28208, 715040), (33620, 599936), (34880, 578264), (35260, 572032), (35752, 564160), (37496, 537920), (44690, 451328), (46870, 430336), (52480, 384334), (53792, 374960), (55040, 366458), (55808, 361415), (56416, 357520), (67240, 299968), (69760, 289132), (70520, 286016), (71504, 282080), (72283, 279040), (74992, 268960), (89380, 225664), (93740, 215168), (104960, 192167), (107584, 187480), (110080, 183229), (112832, 178760), (134480, 149984), (139520, 144566), (141040, 143008)]