205997520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19961}}^1$

素因数の和:20020

約数の個数: 80

約数和(自身を含む): 653476032

約数和(自身を除く): 447478512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 10320, 19961, 39922, 59883, 79844, 99805, 119766, 159688, 199610, 239532, 299415, 319376, 399220, 479064, 598830, 798440, 858323, 958128, 1197660, 1596880, 1716646, 2395320, 2574969, 3433292, 4291615, 4790640, 5149938, 6866584, 8583230, 10299876, 12874845, 13733168, 17166460, 20599752, 25749690, 34332920, 41199504, 51499380, 68665840, 102998760, 205997520]

約数ペア:

[(1, 205997520), (2, 102998760), (3, 68665840), (4, 51499380), (5, 41199504), (6, 34332920), (8, 25749690), (10, 20599752), (12, 17166460), (15, 13733168), (16, 12874845), (20, 10299876), (24, 8583230), (30, 6866584), (40, 5149938), (43, 4790640), (48, 4291615), (60, 3433292), (80, 2574969), (86, 2395320), (120, 1716646), (129, 1596880), (172, 1197660), (215, 958128), (240, 858323), (258, 798440), (344, 598830), (430, 479064), (516, 399220), (645, 319376), (688, 299415), (860, 239532), (1032, 199610), (1290, 159688), (1720, 119766), (2064, 99805), (2580, 79844), (3440, 59883), (5160, 39922), (10320, 19961)]