81720470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{5563}}^1$

素因数の和:5696

約数の個数: 32

約数和(自身を含む): 159842592

約数和(自身を除く): 78122122

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1469, 2938, 5563, 7345, 11126, 14690, 27815, 55630, 72319, 144638, 361595, 628619, 723190, 1257238, 3143095, 6286190, 8172047, 16344094, 40860235, 81720470]

約数ペア:

[(1, 81720470), (2, 40860235), (5, 16344094), (10, 8172047), (13, 6286190), (26, 3143095), (65, 1257238), (113, 723190), (130, 628619), (226, 361595), (565, 144638), (1130, 72319), (1469, 55630), (2938, 27815), (5563, 14690), (7345, 11126)]