289985444

素因数分解:

$2^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{20347}}^1$

素因数の和:20867

約数の個数: 24

約数和(自身を含む): 581138880

約数和(自身を除く): 291153436

約数列:

[1, 2, 4, 7, 14, 28, 509, 1018, 2036, 3563, 7126, 14252, 20347, 40694, 81388, 142429, 284858, 569716, 10356623, 20713246, 41426492, 72496361, 144992722, 289985444]

約数ペア:

[(1, 289985444), (2, 144992722), (4, 72496361), (7, 41426492), (14, 20713246), (28, 10356623), (509, 569716), (1018, 284858), (2036, 142429), (3563, 81388), (7126, 40694), (14252, 20347)]