30900520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{110359}}^1$

素因数の和:110377

約数の個数: 32

約数和(自身を含む): 79459200

約数和(自身を除く): 48558680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 110359, 220718, 441436, 551795, 772513, 882872, 1103590, 1545026, 2207180, 3090052, 3862565, 4414360, 6180104, 7725130, 15450260, 30900520]

約数ペア:

[(1, 30900520), (2, 15450260), (4, 7725130), (5, 6180104), (7, 4414360), (8, 3862565), (10, 3090052), (14, 2207180), (20, 1545026), (28, 1103590), (35, 882872), (40, 772513), (56, 551795), (70, 441436), (140, 220718), (280, 110359)]