901326220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{2221}}^1$

素因数の和:2530

約数の個数: 48

約数和(自身を含む): 1921727808

約数和(自身を除く): 1020401588

約数列:

[1, 2, 4, 5, 10, 20, 103, 197, 206, 394, 412, 515, 788, 985, 1030, 1970, 2060, 2221, 3940, 4442, 8884, 11105, 20291, 22210, 40582, 44420, 81164, 101455, 202910, 228763, 405820, 437537, 457526, 875074, 915052, 1143815, 1750148, 2187685, 2287630, 4375370, 4575260, 8750740, 45066311, 90132622, 180265244, 225331555, 450663110, 901326220]

約数ペア:

[(1, 901326220), (2, 450663110), (4, 225331555), (5, 180265244), (10, 90132622), (20, 45066311), (103, 8750740), (197, 4575260), (206, 4375370), (394, 2287630), (412, 2187685), (515, 1750148), (788, 1143815), (985, 915052), (1030, 875074), (1970, 457526), (2060, 437537), (2221, 405820), (3940, 228763), (4442, 202910), (8884, 101455), (11105, 81164), (20291, 44420), (22210, 40582)]