42687380

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3229}}^1$

素因数の和:3899

約数の個数: 24

約数和(自身を含む): 89806920

約数和(自身を除く): 47119540

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3229, 3305, 6458, 6610, 12916, 13220, 16145, 32290, 64580, 2134369, 4268738, 8537476, 10671845, 21343690, 42687380]

約数ペア:

[(1, 42687380), (2, 21343690), (4, 10671845), (5, 8537476), (10, 4268738), (20, 2134369), (661, 64580), (1322, 32290), (2644, 16145), (3229, 13220), (3305, 12916), (6458, 6610)]