28295020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108827}}^1$

素因数の和:108849

約数の個数: 24

約数和(自身を含む): 63990864

約数和(自身を除く): 35695844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108827, 217654, 435308, 544135, 1088270, 1414751, 2176540, 2829502, 5659004, 7073755, 14147510, 28295020]

約数ペア:

[(1, 28295020), (2, 14147510), (4, 7073755), (5, 5659004), (10, 2829502), (13, 2176540), (20, 1414751), (26, 1088270), (52, 544135), (65, 435308), (130, 217654), (260, 108827)]