25258520

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{263}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 66551760

約数和(自身を除く): 41293240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 263, 280, 343, 392, 490, 526, 686, 980, 1052, 1315, 1372, 1715, 1841, 1960, 2104, 2401, 2630, 2744, 3430, 3682, 4802, 5260, 6860, 7364, 9205, 9604, 10520, 12005, 12887, 13720, 14728, 18410, 19208, 24010, 25774, 36820, 48020, 51548, 64435, 73640, 90209, 96040, 103096, 128870, 180418, 257740, 360836, 451045, 515480, 631463, 721672, 902090, 1262926, 1804180, 2525852, 3157315, 3608360, 5051704, 6314630, 12629260, 25258520]

約数ペア:

[(1, 25258520), (2, 12629260), (4, 6314630), (5, 5051704), (7, 3608360), (8, 3157315), (10, 2525852), (14, 1804180), (20, 1262926), (28, 902090), (35, 721672), (40, 631463), (49, 515480), (56, 451045), (70, 360836), (98, 257740), (140, 180418), (196, 128870), (245, 103096), (263, 96040), (280, 90209), (343, 73640), (392, 64435), (490, 51548), (526, 48020), (686, 36820), (980, 25774), (1052, 24010), (1315, 19208), (1372, 18410), (1715, 14728), (1841, 13720), (1960, 12887), (2104, 12005), (2401, 10520), (2630, 9604), (2744, 9205), (3430, 7364), (3682, 6860), (4802, 5260)]