18145420

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2741}}^1$

素因数の和:3081

約数の個数: 24

約数和(自身を含む): 38234448

約数和(自身を除く): 20089028

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 2741, 3310, 5482, 6620, 10964, 13705, 27410, 54820, 907271, 1814542, 3629084, 4536355, 9072710, 18145420]

約数ペア:

[(1, 18145420), (2, 9072710), (4, 4536355), (5, 3629084), (10, 1814542), (20, 907271), (331, 54820), (662, 27410), (1324, 13705), (1655, 10964), (2741, 6620), (3310, 5482)]