172839255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{4549}}^1$

素因数の和:4723

約数の個数: 32

約数和(自身を含む): 294840000

約数和(自身を除く): 122000745

約数列:

[1, 3, 5, 15, 17, 51, 85, 149, 255, 447, 745, 2235, 2533, 4549, 7599, 12665, 13647, 22745, 37995, 68235, 77333, 231999, 386665, 677801, 1159995, 2033403, 3389005, 10167015, 11522617, 34567851, 57613085, 172839255]

約数ペア:

[(1, 172839255), (3, 57613085), (5, 34567851), (15, 11522617), (17, 10167015), (51, 3389005), (85, 2033403), (149, 1159995), (255, 677801), (447, 386665), (745, 231999), (2235, 77333), (2533, 68235), (4549, 37995), (7599, 22745), (12665, 13647)]