397337590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{235111}}^1$

素因数の和:235144

約数の個数: 24

約数和(自身を含む): 774458928

約数和(自身を除く): 377121338

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 235111, 470222, 1175555, 2351110, 3056443, 6112886, 15282215, 30564430, 39733759, 79467518, 198668795, 397337590]

約数ペア:

[(1, 397337590), (2, 198668795), (5, 79467518), (10, 39733759), (13, 30564430), (26, 15282215), (65, 6112886), (130, 3056443), (169, 2351110), (338, 1175555), (845, 470222), (1690, 235111)]