245627480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:349

約数の個数: 128

約数和(自身を含む): 654065280

約数和(自身を除く): 408437800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 73, 122, 140, 146, 197, 244, 280, 292, 305, 365, 394, 427, 488, 511, 584, 610, 730, 788, 854, 985, 1022, 1220, 1379, 1460, 1576, 1708, 1970, 2044, 2135, 2440, 2555, 2758, 2920, 3416, 3940, 4088, 4270, 4453, 5110, 5516, 6895, 7880, 8540, 8906, 10220, 11032, 12017, 13790, 14381, 17080, 17812, 20440, 22265, 24034, 27580, 28762, 31171, 35624, 44530, 48068, 55160, 57524, 60085, 62342, 71905, 84119, 89060, 96136, 100667, 115048, 120170, 124684, 143810, 155855, 168238, 178120, 201334, 240340, 249368, 287620, 311710, 336476, 402668, 420595, 480680, 503335, 575240, 623420, 672952, 805336, 841190, 877241, 1006670, 1246840, 1682380, 1754482, 2013340, 3364760, 3508964, 4026680, 4386205, 6140687, 7017928, 8772410, 12281374, 17544820, 24562748, 30703435, 35089640, 49125496, 61406870, 122813740, 245627480]

約数ペア:

[(1, 245627480), (2, 122813740), (4, 61406870), (5, 49125496), (7, 35089640), (8, 30703435), (10, 24562748), (14, 17544820), (20, 12281374), (28, 8772410), (35, 7017928), (40, 6140687), (56, 4386205), (61, 4026680), (70, 3508964), (73, 3364760), (122, 2013340), (140, 1754482), (146, 1682380), (197, 1246840), (244, 1006670), (280, 877241), (292, 841190), (305, 805336), (365, 672952), (394, 623420), (427, 575240), (488, 503335), (511, 480680), (584, 420595), (610, 402668), (730, 336476), (788, 311710), (854, 287620), (985, 249368), (1022, 240340), (1220, 201334), (1379, 178120), (1460, 168238), (1576, 155855), (1708, 143810), (1970, 124684), (2044, 120170), (2135, 115048), (2440, 100667), (2555, 96136), (2758, 89060), (2920, 84119), (3416, 71905), (3940, 62342), (4088, 60085), (4270, 57524), (4453, 55160), (5110, 48068), (5516, 44530), (6895, 35624), (7880, 31171), (8540, 28762), (8906, 27580), (10220, 24034), (11032, 22265), (12017, 20440), (13790, 17812), (14381, 17080)]