15680015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1619}}^1$

素因数の和:1786

約数の個数: 16

約数和(自身を含む): 20412000

約数和(自身を除く): 4731985

約数列:

[1, 5, 13, 65, 149, 745, 1619, 1937, 8095, 9685, 21047, 105235, 241231, 1206155, 3136003, 15680015]

約数ペア:

[(1, 15680015), (5, 3136003), (13, 1206155), (65, 241231), (149, 105235), (745, 21047), (1619, 9685), (1937, 8095)]