20501572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{373}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 44568832

約数和(自身を除く): 24067260

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 151, 182, 302, 364, 373, 604, 746, 1057, 1492, 1963, 2114, 2611, 3926, 4228, 4849, 5222, 7852, 9698, 10444, 13741, 19396, 27482, 33943, 54964, 56323, 67886, 112646, 135772, 225292, 394261, 732199, 788522, 1464398, 1577044, 2928796, 5125393, 10250786, 20501572]

約数ペア:

[(1, 20501572), (2, 10250786), (4, 5125393), (7, 2928796), (13, 1577044), (14, 1464398), (26, 788522), (28, 732199), (52, 394261), (91, 225292), (151, 135772), (182, 112646), (302, 67886), (364, 56323), (373, 54964), (604, 33943), (746, 27482), (1057, 19396), (1492, 13741), (1963, 10444), (2114, 9698), (2611, 7852), (3926, 5222), (4228, 4849)]