21169576240

素因数分解:

$2^4\times 5^1\times {\mathrm{264619703}}^1$

素因数の和:264619716

約数の個数: 20

約数和(自身を含む): 49219264944

約数和(自身を除く): 28049688704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 264619703, 529239406, 1058478812, 1323098515, 2116957624, 2646197030, 4233915248, 5292394060, 10584788120, 21169576240]

約数ペア:

[(1, 21169576240), (2, 10584788120), (4, 5292394060), (5, 4233915248), (8, 2646197030), (10, 2116957624), (16, 1323098515), (20, 1058478812), (40, 529239406), (80, 264619703)]