348566140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1340639}}^1$

素因数の和:1340661

約数の個数: 24

約数和(自身を含む): 788296320

約数和(自身を除く): 439730180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1340639, 2681278, 5362556, 6703195, 13406390, 17428307, 26812780, 34856614, 69713228, 87141535, 174283070, 348566140]

約数ペア:

[(1, 348566140), (2, 174283070), (4, 87141535), (5, 69713228), (10, 34856614), (13, 26812780), (20, 17428307), (26, 13406390), (52, 6703195), (65, 5362556), (130, 2681278), (260, 1340639)]