1288015

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 16

約数和(自身を含む): 1624896

約数和(自身を除く): 336881

約数列:

[1, 5, 41, 61, 103, 205, 305, 515, 2501, 4223, 6283, 12505, 21115, 31415, 257603, 1288015]

約数ペア:

[(1, 1288015), (5, 257603), (41, 31415), (61, 21115), (103, 12505), (205, 6283), (305, 4223), (515, 2501)]