258978880

素因数分解:

$2^6\times 5^1\times {\mathrm{809309}}^1$

素因数の和:809326

約数の個数: 28

約数和(自身を含む): 616694220

約数和(自身を除く): 357715340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 809309, 1618618, 3237236, 4046545, 6474472, 8093090, 12948944, 16186180, 25897888, 32372360, 51795776, 64744720, 129489440, 258978880]

約数ペア:

[(1, 258978880), (2, 129489440), (4, 64744720), (5, 51795776), (8, 32372360), (10, 25897888), (16, 16186180), (20, 12948944), (32, 8093090), (40, 6474472), (64, 4046545), (80, 3237236), (160, 1618618), (320, 809309)]