204949240

素因数分解:

$2^3\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{2371}}^1$

素因数の和:4543

約数の個数: 32

約数和(自身を含む): 461543760

約数和(自身を除く): 256594520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2161, 2371, 4322, 4742, 8644, 9484, 10805, 11855, 17288, 18968, 21610, 23710, 43220, 47420, 86440, 94840, 5123731, 10247462, 20494924, 25618655, 40989848, 51237310, 102474620, 204949240]

約数ペア:

[(1, 204949240), (2, 102474620), (4, 51237310), (5, 40989848), (8, 25618655), (10, 20494924), (20, 10247462), (40, 5123731), (2161, 94840), (2371, 86440), (4322, 47420), (4742, 43220), (8644, 23710), (9484, 21610), (10805, 18968), (11855, 17288)]