289796890

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{221219}}^1$

素因数の和:221357

約数の個数: 16

約数和(自身を含む): 525618720

約数和(自身を除く): 235821830

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 221219, 442438, 1106095, 2212190, 28979689, 57959378, 144898445, 289796890]

約数ペア:

[(1, 289796890), (2, 144898445), (5, 57959378), (10, 28979689), (131, 2212190), (262, 1106095), (655, 442438), (1310, 221219)]