381445820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{3943}}^1$

素因数の和:4650

約数の個数: 48

約数和(自身を含む): 917027328

約数和(自身を除く): 535581508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 691, 1382, 2764, 3455, 3943, 4837, 6910, 7886, 9674, 13820, 15772, 19348, 19715, 24185, 27601, 39430, 48370, 55202, 78860, 96740, 110404, 138005, 276010, 552020, 2724613, 5449226, 10898452, 13623065, 19072291, 27246130, 38144582, 54492260, 76289164, 95361455, 190722910, 381445820]

約数ペア:

[(1, 381445820), (2, 190722910), (4, 95361455), (5, 76289164), (7, 54492260), (10, 38144582), (14, 27246130), (20, 19072291), (28, 13623065), (35, 10898452), (70, 5449226), (140, 2724613), (691, 552020), (1382, 276010), (2764, 138005), (3455, 110404), (3943, 96740), (4837, 78860), (6910, 55202), (7886, 48370), (9674, 39430), (13820, 27601), (15772, 24185), (19348, 19715)]