399777290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191281}}^1$

素因数の和:191318

約数の個数: 32

約数和(自身を含む): 826338240

約数和(自身を除く): 426560950

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 191281, 382562, 956405, 1912810, 2104091, 3634339, 4208182, 7268678, 10520455, 18171695, 21040910, 36343390, 39977729, 79955458, 199888645, 399777290]

約数ペア:

[(1, 399777290), (2, 199888645), (5, 79955458), (10, 39977729), (11, 36343390), (19, 21040910), (22, 18171695), (38, 10520455), (55, 7268678), (95, 4208182), (110, 3634339), (190, 2104091), (209, 1912810), (418, 956405), (1045, 382562), (2090, 191281)]