20326280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39089}}^1$

素因数の和:39113

約数の個数: 32

約数和(自身を含む): 49253400

約数和(自身を除く): 28927120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39089, 78178, 156356, 195445, 312712, 390890, 508157, 781780, 1016314, 1563560, 2032628, 2540785, 4065256, 5081570, 10163140, 20326280]

約数ペア:

[(1, 20326280), (2, 10163140), (4, 5081570), (5, 4065256), (8, 2540785), (10, 2032628), (13, 1563560), (20, 1016314), (26, 781780), (40, 508157), (52, 390890), (65, 312712), (104, 195445), (130, 156356), (260, 78178), (520, 39089)]