642540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{10709}}^1$

素因数の和:10721

約数の個数: 24

約数和(自身を含む): 1799280

約数和(自身を除く): 1156740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 10709, 21418, 32127, 42836, 53545, 64254, 107090, 128508, 160635, 214180, 321270, 642540]

約数ペア:

[(1, 642540), (2, 321270), (3, 214180), (4, 160635), (5, 128508), (6, 107090), (10, 64254), (12, 53545), (15, 42836), (20, 32127), (30, 21418), (60, 10709)]