20739654315

素因数分解:

$3^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{478589}}^1$

素因数の和:478713

約数の個数: 40

約数和(自身を含む): 37525284720

約数和(自身を除く): 16785630405

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 107, 135, 321, 405, 535, 963, 1605, 2889, 4815, 8667, 14445, 43335, 478589, 1435767, 2392945, 4307301, 7178835, 12921903, 21536505, 38765709, 51209023, 64609515, 153627069, 193828545, 256045115, 460881207, 768135345, 1382643621, 2304406035, 4147930863, 6913218105, 20739654315]

約数ペア:

[(1, 20739654315), (3, 6913218105), (5, 4147930863), (9, 2304406035), (15, 1382643621), (27, 768135345), (45, 460881207), (81, 256045115), (107, 193828545), (135, 153627069), (321, 64609515), (405, 51209023), (535, 38765709), (963, 21536505), (1605, 12921903), (2889, 7178835), (4815, 4307301), (8667, 2392945), (14445, 1435767), (43335, 478589)]