201638020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7507}}^1$

素因数の和:7612

約数の個数: 48

約数和(自身を含む): 454083840

約数和(自身を除く): 252445820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 170, 316, 340, 395, 790, 1343, 1580, 2686, 5372, 6715, 7507, 13430, 15014, 26860, 30028, 37535, 75070, 127619, 150140, 255238, 510476, 593053, 638095, 1186106, 1276190, 2372212, 2552380, 2965265, 5930530, 10081901, 11861060, 20163802, 40327604, 50409505, 100819010, 201638020]

約数ペア:

[(1, 201638020), (2, 100819010), (4, 50409505), (5, 40327604), (10, 20163802), (17, 11861060), (20, 10081901), (34, 5930530), (68, 2965265), (79, 2552380), (85, 2372212), (158, 1276190), (170, 1186106), (316, 638095), (340, 593053), (395, 510476), (790, 255238), (1343, 150140), (1580, 127619), (2686, 75070), (5372, 37535), (6715, 30028), (7507, 26860), (13430, 15014)]