208457860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{801761}}^1$

素因数の和:801783

約数の個数: 24

約数和(自身を含む): 471436056

約数和(自身を除く): 262978196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 801761, 1603522, 3207044, 4008805, 8017610, 10422893, 16035220, 20845786, 41691572, 52114465, 104228930, 208457860]

約数ペア:

[(1, 208457860), (2, 104228930), (4, 52114465), (5, 41691572), (10, 20845786), (13, 16035220), (20, 10422893), (26, 8017610), (52, 4008805), (65, 3207044), (130, 1603522), (260, 801761)]