8987420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2659}}^1$

素因数の和:2694

約数の個数: 36

約数和(自身を含む): 20444760

約数和(自身を除く): 11457340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2659, 3380, 5318, 10636, 13295, 26590, 34567, 53180, 69134, 138268, 172835, 345670, 449371, 691340, 898742, 1797484, 2246855, 4493710, 8987420]

約数ペア:

[(1, 8987420), (2, 4493710), (4, 2246855), (5, 1797484), (10, 898742), (13, 691340), (20, 449371), (26, 345670), (52, 172835), (65, 138268), (130, 69134), (169, 53180), (260, 34567), (338, 26590), (676, 13295), (845, 10636), (1690, 5318), (2659, 3380)]