128216445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{4643}}^1$

素因数の和:4921

約数の個数: 32

約数和(自身を含む): 235395072

約数和(自身を除く): 107178627

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 263, 789, 1315, 1841, 3945, 4643, 5523, 9205, 13929, 23215, 27615, 32501, 69645, 97503, 162505, 487515, 1221109, 3663327, 6105545, 8547763, 18316635, 25643289, 42738815, 128216445]

約数ペア:

[(1, 128216445), (3, 42738815), (5, 25643289), (7, 18316635), (15, 8547763), (21, 6105545), (35, 3663327), (105, 1221109), (263, 487515), (789, 162505), (1315, 97503), (1841, 69645), (3945, 32501), (4643, 27615), (5523, 23215), (9205, 13929)]