289228840

素因数分解:

$2^3\times 5^1\times {\mathrm{2689}}^2$

素因数の和:5389

約数の個数: 24

約数和(自身を含む): 651006990

約数和(自身を除く): 361778150

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2689, 5378, 10756, 13445, 21512, 26890, 53780, 107560, 7230721, 14461442, 28922884, 36153605, 57845768, 72307210, 144614420, 289228840]

約数ペア:

[(1, 289228840), (2, 144614420), (4, 72307210), (5, 57845768), (8, 36153605), (10, 28922884), (20, 14461442), (40, 7230721), (2689, 107560), (5378, 53780), (10756, 26890), (13445, 21512)]