208037565

素因数分解:

$3^4\times 5^1\times {\mathrm{513673}}^1$

素因数の和:513690

約数の個数: 20

約数和(自身を含む): 372927324

約数和(自身を除く): 164889759

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 513673, 1541019, 2568365, 4623057, 7705095, 13869171, 23115285, 41607513, 69345855, 208037565]

約数ペア:

[(1, 208037565), (3, 69345855), (5, 41607513), (9, 23115285), (15, 13869171), (27, 7705095), (45, 4623057), (81, 2568365), (135, 1541019), (405, 513673)]