257771920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 714954240

約数和(自身を除く): 457182320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 103, 109, 112, 140, 164, 205, 206, 218, 280, 287, 328, 410, 412, 436, 515, 545, 560, 574, 656, 721, 763, 820, 824, 872, 1030, 1090, 1148, 1435, 1442, 1526, 1640, 1648, 1744, 2060, 2180, 2296, 2870, 2884, 3052, 3280, 3605, 3815, 4120, 4223, 4360, 4469, 4592, 5740, 5768, 6104, 7210, 7630, 8240, 8446, 8720, 8938, 11227, 11480, 11536, 12208, 14420, 15260, 16892, 17876, 21115, 22345, 22454, 22960, 28840, 29561, 30520, 31283, 33784, 35752, 42230, 44690, 44908, 56135, 57680, 59122, 61040, 62566, 67568, 71504, 78589, 84460, 89380, 89816, 112270, 118244, 125132, 147805, 156415, 157178, 168920, 178760, 179632, 224540, 236488, 250264, 295610, 312830, 314356, 337840, 357520, 392945, 449080, 460307, 472976, 500528, 591220, 625660, 628712, 785890, 898160, 920614, 1182440, 1251320, 1257424, 1571780, 1841228, 2301535, 2364880, 2502640, 3143560, 3222149, 3682456, 4603070, 6287120, 6444298, 7364912, 9206140, 12888596, 16110745, 18412280, 25777192, 32221490, 36824560, 51554384, 64442980, 128885960, 257771920]

約数ペア:

[(1, 257771920), (2, 128885960), (4, 64442980), (5, 51554384), (7, 36824560), (8, 32221490), (10, 25777192), (14, 18412280), (16, 16110745), (20, 12888596), (28, 9206140), (35, 7364912), (40, 6444298), (41, 6287120), (56, 4603070), (70, 3682456), (80, 3222149), (82, 3143560), (103, 2502640), (109, 2364880), (112, 2301535), (140, 1841228), (164, 1571780), (205, 1257424), (206, 1251320), (218, 1182440), (280, 920614), (287, 898160), (328, 785890), (410, 628712), (412, 625660), (436, 591220), (515, 500528), (545, 472976), (560, 460307), (574, 449080), (656, 392945), (721, 357520), (763, 337840), (820, 314356), (824, 312830), (872, 295610), (1030, 250264), (1090, 236488), (1148, 224540), (1435, 179632), (1442, 178760), (1526, 168920), (1640, 157178), (1648, 156415), (1744, 147805), (2060, 125132), (2180, 118244), (2296, 112270), (2870, 89816), (2884, 89380), (3052, 84460), (3280, 78589), (3605, 71504), (3815, 67568), (4120, 62566), (4223, 61040), (4360, 59122), (4469, 57680), (4592, 56135), (5740, 44908), (5768, 44690), (6104, 42230), (7210, 35752), (7630, 33784), (8240, 31283), (8446, 30520), (8720, 29561), (8938, 28840), (11227, 22960), (11480, 22454), (11536, 22345), (12208, 21115), (14420, 17876), (15260, 16892)]