155640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{1297}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 467280

約数和(自身を除く): 311640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1297, 2594, 3891, 5188, 6485, 7782, 10376, 12970, 15564, 19455, 25940, 31128, 38910, 51880, 77820, 155640]

約数ペア:

[(1, 155640), (2, 77820), (3, 51880), (4, 38910), (5, 31128), (6, 25940), (8, 19455), (10, 15564), (12, 12970), (15, 10376), (20, 7782), (24, 6485), (30, 5188), (40, 3891), (60, 2594), (120, 1297)]