20676500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3181}}^1$

素因数の和:3213

約数の個数: 48

約数和(自身を含む): 48646416

約数和(自身を除く): 27969916

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3181, 3250, 6362, 6500, 12724, 15905, 31810, 41353, 63620, 79525, 82706, 159050, 165412, 206765, 318100, 397625, 413530, 795250, 827060, 1033825, 1590500, 2067650, 4135300, 5169125, 10338250, 20676500]

約数ペア:

[(1, 20676500), (2, 10338250), (4, 5169125), (5, 4135300), (10, 2067650), (13, 1590500), (20, 1033825), (25, 827060), (26, 795250), (50, 413530), (52, 397625), (65, 318100), (100, 206765), (125, 165412), (130, 159050), (250, 82706), (260, 79525), (325, 63620), (500, 41353), (650, 31810), (1300, 15905), (1625, 12724), (3181, 6500), (3250, 6362)]