815344

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:528

約数の個数: 20

約数和(自身を含む): 1595880

約数和(自身を除く): 780536

約数列:

[1, 2, 4, 8, 16, 131, 262, 389, 524, 778, 1048, 1556, 2096, 3112, 6224, 50959, 101918, 203836, 407672, 815344]

約数ペア:

[(1, 815344), (2, 407672), (4, 203836), (8, 101918), (16, 50959), (131, 6224), (262, 3112), (389, 2096), (524, 1556), (778, 1048)]