81902470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{48463}}^1$

素因数の和:48496

約数の個数: 24

約数和(自身を含む): 159640416

約数和(自身を除く): 77737946

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 48463, 96926, 242315, 484630, 630019, 1260038, 3150095, 6300190, 8190247, 16380494, 40951235, 81902470]

約数ペア:

[(1, 81902470), (2, 40951235), (5, 16380494), (10, 8190247), (13, 6300190), (26, 3150095), (65, 1260038), (130, 630019), (169, 484630), (338, 242315), (845, 96926), (1690, 48463)]