217851760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 604961280

約数和(自身を除く): 387109520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 83, 86, 109, 112, 140, 166, 172, 215, 218, 280, 301, 332, 344, 415, 430, 436, 545, 560, 581, 602, 664, 688, 763, 830, 860, 872, 1090, 1162, 1204, 1328, 1505, 1526, 1660, 1720, 1744, 2180, 2324, 2408, 2905, 3010, 3052, 3320, 3440, 3569, 3815, 4360, 4648, 4687, 4816, 5810, 6020, 6104, 6640, 7138, 7630, 8720, 9047, 9296, 9374, 11620, 12040, 12208, 14276, 15260, 17845, 18094, 18748, 23240, 23435, 24080, 24983, 28552, 30520, 32809, 35690, 36188, 37496, 45235, 46480, 46870, 49966, 57104, 61040, 63329, 65618, 71380, 72376, 74992, 90470, 93740, 99932, 124915, 126658, 131236, 142760, 144752, 164045, 180940, 187480, 199864, 249830, 253316, 262472, 285520, 316645, 328090, 361880, 374960, 389021, 399728, 499660, 506632, 524944, 633290, 656180, 723760, 778042, 999320, 1013264, 1266580, 1312360, 1556084, 1945105, 1998640, 2533160, 2624720, 2723147, 3112168, 3890210, 5066320, 5446294, 6224336, 7780420, 10892588, 13615735, 15560840, 21785176, 27231470, 31121680, 43570352, 54462940, 108925880, 217851760]

約数ペア:

[(1, 217851760), (2, 108925880), (4, 54462940), (5, 43570352), (7, 31121680), (8, 27231470), (10, 21785176), (14, 15560840), (16, 13615735), (20, 10892588), (28, 7780420), (35, 6224336), (40, 5446294), (43, 5066320), (56, 3890210), (70, 3112168), (80, 2723147), (83, 2624720), (86, 2533160), (109, 1998640), (112, 1945105), (140, 1556084), (166, 1312360), (172, 1266580), (215, 1013264), (218, 999320), (280, 778042), (301, 723760), (332, 656180), (344, 633290), (415, 524944), (430, 506632), (436, 499660), (545, 399728), (560, 389021), (581, 374960), (602, 361880), (664, 328090), (688, 316645), (763, 285520), (830, 262472), (860, 253316), (872, 249830), (1090, 199864), (1162, 187480), (1204, 180940), (1328, 164045), (1505, 144752), (1526, 142760), (1660, 131236), (1720, 126658), (1744, 124915), (2180, 99932), (2324, 93740), (2408, 90470), (2905, 74992), (3010, 72376), (3052, 71380), (3320, 65618), (3440, 63329), (3569, 61040), (3815, 57104), (4360, 49966), (4648, 46870), (4687, 46480), (4816, 45235), (5810, 37496), (6020, 36188), (6104, 35690), (6640, 32809), (7138, 30520), (7630, 28552), (8720, 24983), (9047, 24080), (9296, 23435), (9374, 23240), (11620, 18748), (12040, 18094), (12208, 17845), (14276, 15260)]