259373140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997589}}^1$

素因数の和:997611

約数の個数: 24

約数和(自身を含む): 586582920

約数和(自身を除く): 327209780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 997589, 1995178, 3990356, 4987945, 9975890, 12968657, 19951780, 25937314, 51874628, 64843285, 129686570, 259373140]

約数ペア:

[(1, 259373140), (2, 129686570), (4, 64843285), (5, 51874628), (10, 25937314), (13, 19951780), (20, 12968657), (26, 9975890), (52, 4987945), (65, 3990356), (130, 1995178), (260, 997589)]