355752020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{12553}}^1$

素因数の和:12684

約数の個数: 48

約数和(自身を含む): 811992720

約数和(自身を除く): 456240700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 5668, 7085, 12553, 14170, 25106, 28340, 50212, 62765, 125530, 163189, 251060, 326378, 652756, 815945, 1368277, 1631890, 2736554, 3263780, 5473108, 6841385, 13682770, 17787601, 27365540, 35575202, 71150404, 88938005, 177876010, 355752020]

約数ペア:

[(1, 355752020), (2, 177876010), (4, 88938005), (5, 71150404), (10, 35575202), (13, 27365540), (20, 17787601), (26, 13682770), (52, 6841385), (65, 5473108), (109, 3263780), (130, 2736554), (218, 1631890), (260, 1368277), (436, 815945), (545, 652756), (1090, 326378), (1417, 251060), (2180, 163189), (2834, 125530), (5668, 62765), (7085, 50212), (12553, 28340), (14170, 25106)]