20716004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19503196

約数列:

[1, 2, 4, 19, 37, 38, 53, 74, 76, 106, 139, 148, 212, 278, 556, 703, 1007, 1406, 1961, 2014, 2641, 2812, 3922, 4028, 5143, 5282, 7367, 7844, 10286, 10564, 14734, 20572, 29468, 37259, 74518, 97717, 139973, 149036, 195434, 272579, 279946, 390868, 545158, 559892, 1090316, 5179001, 10358002, 20716004]

約数ペア:

[(1, 20716004), (2, 10358002), (4, 5179001), (19, 1090316), (37, 559892), (38, 545158), (53, 390868), (74, 279946), (76, 272579), (106, 195434), (139, 149036), (148, 139973), (212, 97717), (278, 74518), (556, 37259), (703, 29468), (1007, 20572), (1406, 14734), (1961, 10564), (2014, 10286), (2641, 7844), (2812, 7367), (3922, 5282), (4028, 5143)]