68997015

素因数分解:

$3^4\times 5^1\times {\mathrm{170363}}^1$

素因数の和:170380

約数の個数: 20

約数和(自身を含む): 123684264

約数和(自身を除く): 54687249

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 170363, 511089, 851815, 1533267, 2555445, 4599801, 7666335, 13799403, 22999005, 68997015]

約数ペア:

[(1, 68997015), (3, 22999005), (5, 13799403), (9, 7666335), (15, 4599801), (27, 2555445), (45, 1533267), (81, 851815), (135, 511089), (405, 170363)]