205264520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 470448000

約数和(自身を除く): 265183480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 199, 214, 241, 398, 428, 482, 535, 796, 856, 964, 995, 1070, 1205, 1592, 1928, 1990, 2140, 2410, 3980, 4280, 4820, 7960, 9640, 21293, 25787, 42586, 47959, 51574, 85172, 95918, 103148, 106465, 128935, 170344, 191836, 206296, 212930, 239795, 257870, 383672, 425860, 479590, 515740, 851720, 959180, 1031480, 1918360, 5131613, 10263226, 20526452, 25658065, 41052904, 51316130, 102632260, 205264520]

約数ペア:

[(1, 205264520), (2, 102632260), (4, 51316130), (5, 41052904), (8, 25658065), (10, 20526452), (20, 10263226), (40, 5131613), (107, 1918360), (199, 1031480), (214, 959180), (241, 851720), (398, 515740), (428, 479590), (482, 425860), (535, 383672), (796, 257870), (856, 239795), (964, 212930), (995, 206296), (1070, 191836), (1205, 170344), (1592, 128935), (1928, 106465), (1990, 103148), (2140, 95918), (2410, 85172), (3980, 51574), (4280, 47959), (4820, 42586), (7960, 25787), (9640, 21293)]