81868488

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{262399}}^1$

素因数の和:262421

約数の個数: 32

約数和(自身を含む): 220416000

約数和(自身を除く): 138547512

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 262399, 524798, 787197, 1049596, 1574394, 2099192, 3148788, 3411187, 6297576, 6822374, 10233561, 13644748, 20467122, 27289496, 40934244, 81868488]

約数ペア:

[(1, 81868488), (2, 40934244), (3, 27289496), (4, 20467122), (6, 13644748), (8, 10233561), (12, 6822374), (13, 6297576), (24, 3411187), (26, 3148788), (39, 2099192), (52, 1574394), (78, 1049596), (104, 787197), (156, 524798), (312, 262399)]