18998840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67853}}^1$

素因数の和:67871

約数の個数: 32

約数和(自身を含む): 48854880

約数和(自身を除く): 29856040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67853, 135706, 271412, 339265, 474971, 542824, 678530, 949942, 1357060, 1899884, 2374855, 2714120, 3799768, 4749710, 9499420, 18998840]

約数ペア:

[(1, 18998840), (2, 9499420), (4, 4749710), (5, 3799768), (7, 2714120), (8, 2374855), (10, 1899884), (14, 1357060), (20, 949942), (28, 678530), (35, 542824), (40, 474971), (56, 339265), (70, 271412), (140, 135706), (280, 67853)]