42355220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19429}}^1$

素因数の和:19547

約数の個数: 24

約数和(自身を含む): 89766600

約数和(自身を除く): 47411380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 19429, 38858, 77716, 97145, 194290, 388580, 2117761, 4235522, 8471044, 10588805, 21177610, 42355220]

約数ペア:

[(1, 42355220), (2, 21177610), (4, 10588805), (5, 8471044), (10, 4235522), (20, 2117761), (109, 388580), (218, 194290), (436, 97145), (545, 77716), (1090, 38858), (2180, 19429)]