208999835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{347}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 281428992

約数和(自身を除く): 72429157

約数列:

[1, 5, 11, 47, 55, 233, 235, 347, 517, 1165, 1735, 2563, 2585, 3817, 10951, 12815, 16309, 19085, 54755, 80851, 81545, 120461, 179399, 404255, 602305, 889361, 896995, 3799997, 4446805, 18999985, 41799967, 208999835]

約数ペア:

[(1, 208999835), (5, 41799967), (11, 18999985), (47, 4446805), (55, 3799997), (233, 896995), (235, 889361), (347, 602305), (517, 404255), (1165, 179399), (1735, 120461), (2563, 81545), (2585, 80851), (3817, 54755), (10951, 19085), (12815, 16309)]