1780973985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{80387}}^1$

素因数の和:80613

約数の個数: 32

約数和(自身を含む): 3272113152

約数和(自身を除く): 1491139167

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 211, 633, 1055, 1477, 3165, 4431, 7385, 22155, 80387, 241161, 401935, 562709, 1205805, 1688127, 2813545, 8440635, 16961657, 50884971, 84808285, 118731599, 254424855, 356194797, 593657995, 1780973985]

約数ペア:

[(1, 1780973985), (3, 593657995), (5, 356194797), (7, 254424855), (15, 118731599), (21, 84808285), (35, 50884971), (105, 16961657), (211, 8440635), (633, 2813545), (1055, 1688127), (1477, 1205805), (3165, 562709), (4431, 401935), (7385, 241161), (22155, 80387)]