814540

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 1728720

約数和(自身を除く): 914180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 293, 556, 586, 695, 1172, 1390, 1465, 2780, 2930, 5860, 40727, 81454, 162908, 203635, 407270, 814540]

約数ペア:

[(1, 814540), (2, 407270), (4, 203635), (5, 162908), (10, 81454), (20, 40727), (139, 5860), (278, 2930), (293, 2780), (556, 1465), (586, 1390), (695, 1172)]