206875215

素因数分解:

$3^4\times 5^1\times {\mathrm{510803}}^1$

素因数の和:510820

約数の個数: 20

約数和(自身を含む): 370843704

約数和(自身を除く): 163968489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 510803, 1532409, 2554015, 4597227, 7662045, 13791681, 22986135, 41375043, 68958405, 206875215]

約数ペア:

[(1, 206875215), (3, 68958405), (5, 41375043), (9, 22986135), (15, 13791681), (27, 7662045), (45, 4597227), (81, 2554015), (135, 1532409), (405, 510803)]