81779985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{259619}}^1$

素因数の和:259637

約数の個数: 24

約数和(自身を含む): 162002880

約数和(自身を除く): 80222895

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 259619, 778857, 1298095, 1817333, 2336571, 3894285, 5451999, 9086665, 11682855, 16355997, 27259995, 81779985]

約数ペア:

[(1, 81779985), (3, 27259995), (5, 16355997), (7, 11682855), (9, 9086665), (15, 5451999), (21, 3894285), (35, 2336571), (45, 1817333), (63, 1298095), (105, 778857), (315, 259619)]