128250855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{150001}}^1$

素因数の和:150031

約数の個数: 24

約数和(自身を含む): 234003120

約数和(自身を除く): 105752265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 150001, 450003, 750005, 1350009, 2250015, 2850019, 6750045, 8550057, 14250095, 25650171, 42750285, 128250855]

約数ペア:

[(1, 128250855), (3, 42750285), (5, 25650171), (9, 14250095), (15, 8550057), (19, 6750045), (45, 2850019), (57, 2250015), (95, 1350009), (171, 750005), (285, 450003), (855, 150001)]