245655320

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{21701}}^1$

素因数の和:21995

約数の個数: 32

約数和(自身を含む): 554703120

約数和(自身を除く): 309047800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 21701, 43402, 86804, 108505, 173608, 217010, 434020, 868040, 6141383, 12282766, 24565532, 30706915, 49131064, 61413830, 122827660, 245655320]

約数ペア:

[(1, 245655320), (2, 122827660), (4, 61413830), (5, 49131064), (8, 30706915), (10, 24565532), (20, 12282766), (40, 6141383), (283, 868040), (566, 434020), (1132, 217010), (1415, 173608), (2264, 108505), (2830, 86804), (5660, 43402), (11320, 21701)]