78217215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{121267}}^1$

素因数の和:121318

約数の個数: 16

約数和(自身を含む): 128059008

約数和(自身を除く): 49841793

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 121267, 363801, 606335, 1819005, 5214481, 15643443, 26072405, 78217215]

約数ペア:

[(1, 78217215), (3, 26072405), (5, 15643443), (15, 5214481), (43, 1819005), (129, 606335), (215, 363801), (645, 121267)]