20112705

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1007

約数の個数: 40

約数和(自身を含む): 36773352

約数和(自身を除く): 16660647

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 937, 1431, 2385, 2811, 4293, 4685, 7155, 8433, 14055, 21465, 25299, 42165, 49661, 75897, 126495, 148983, 248305, 379485, 446949, 744915, 1340847, 2234745, 4022541, 6704235, 20112705]

約数ペア:

[(1, 20112705), (3, 6704235), (5, 4022541), (9, 2234745), (15, 1340847), (27, 744915), (45, 446949), (53, 379485), (81, 248305), (135, 148983), (159, 126495), (265, 75897), (405, 49661), (477, 42165), (795, 25299), (937, 21465), (1431, 14055), (2385, 8433), (2811, 7155), (4293, 4685)]