9781555

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 14515200

約数和(自身を除く): 4733645

約数列:

[1, 5, 7, 23, 29, 35, 115, 145, 161, 203, 419, 667, 805, 1015, 2095, 2933, 3335, 4669, 9637, 12151, 14665, 23345, 48185, 60755, 67459, 85057, 279473, 337295, 425285, 1397365, 1956311, 9781555]

約数ペア:

[(1, 9781555), (5, 1956311), (7, 1397365), (23, 425285), (29, 337295), (35, 279473), (115, 85057), (145, 67459), (161, 60755), (203, 48185), (419, 23345), (667, 14665), (805, 12151), (1015, 9637), (2095, 4669), (2933, 3335)]