1989211835

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{205391}}^1$

素因数の和:205558

約数の個数: 16

約数和(自身を含む): 2587939200

約数和(自身を除く): 598727365

約数列:

[1, 5, 13, 65, 149, 745, 1937, 9685, 205391, 1026955, 2670083, 13350415, 30603259, 153016295, 397842367, 1989211835]

約数ペア:

[(1, 1989211835), (5, 397842367), (13, 153016295), (65, 30603259), (149, 13350415), (745, 2670083), (1937, 1026955), (9685, 205391)]