28872284

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 63393120

約数和(自身を除く): 34520836

約数列:

[1, 2, 4, 7, 14, 28, 29, 31, 37, 58, 62, 74, 116, 124, 148, 203, 217, 259, 406, 434, 518, 812, 868, 899, 961, 1036, 1073, 1147, 1798, 1922, 2146, 2294, 3596, 3844, 4292, 4588, 6293, 6727, 7511, 8029, 12586, 13454, 15022, 16058, 25172, 26908, 27869, 30044, 32116, 33263, 35557, 55738, 66526, 71114, 111476, 133052, 142228, 195083, 232841, 248899, 390166, 465682, 497798, 780332, 931364, 995596, 1031153, 2062306, 4124612, 7218071, 14436142, 28872284]

約数ペア:

[(1, 28872284), (2, 14436142), (4, 7218071), (7, 4124612), (14, 2062306), (28, 1031153), (29, 995596), (31, 931364), (37, 780332), (58, 497798), (62, 465682), (74, 390166), (116, 248899), (124, 232841), (148, 195083), (203, 142228), (217, 133052), (259, 111476), (406, 71114), (434, 66526), (518, 55738), (812, 35557), (868, 33263), (899, 32116), (961, 30044), (1036, 27869), (1073, 26908), (1147, 25172), (1798, 16058), (1922, 15022), (2146, 13454), (2294, 12586), (3596, 8029), (3844, 7511), (4292, 6727), (4588, 6293)]