About the Number

202105988

202105987 ← → 202105989

2進数表記:1100000010111110010010000100

漢数字表記:二億二百十万五千九百八十八

素因数分解:

2 2 × 7 2 × 29 1 × 31 2 × 37 1

素因数の和:146
約数の個数: 108
約数和(自身を含む): 451675980
約数和(自身を除く): 249569992

約数列:
[1, 2, 4, 7, 14, 28, 29, 31, 37, 49, 58, 62, 74, 98, 116, 124, 148, 196, 203, 217, 259, 406, 434, 518, 812, 868, 899, 961, 1036, 1073, 1147, 1421, 1519, 1798, 1813, 1922, 2146, 2294, 2842, 3038, 3596, 3626, 3844, 4292, 4588, 5684, 6076, 6293, 6727, 7252, 7511, 8029, 12586, 13454, 15022, 16058, 25172, 26908, 27869, 30044, 32116, 33263, 35557, 44051, 47089, 52577, 55738, 56203, 66526, 71114, 88102, 94178, 105154, 111476, 112406, 133052, 142228, 176204, 188356, 195083, 210308, 224812, 232841, 248899, 390166, 465682, 497798, 780332, 931364, 995596, 1031153, 1365581, 1629887, 1742293, 2062306, 2731162, 3259774, 3484586, 4124612, 5462324, 6519548, 6969172, 7218071, 14436142, 28872284, 50526497, 101052994, 202105988]

約数ペア:
[(1, 202105988), (2, 101052994), (4, 50526497), (7, 28872284), (14, 14436142), (28, 7218071), (29, 6969172), (31, 6519548), (37, 5462324), (49, 4124612), (58, 3484586), (62, 3259774), (74, 2731162), (98, 2062306), (116, 1742293), (124, 1629887), (148, 1365581), (196, 1031153), (203, 995596), (217, 931364), (259, 780332), (406, 497798), (434, 465682), (518, 390166), (812, 248899), (868, 232841), (899, 224812), (961, 210308), (1036, 195083), (1073, 188356), (1147, 176204), (1421, 142228), (1519, 133052), (1798, 112406), (1813, 111476), (1922, 105154), (2146, 94178), (2294, 88102), (2842, 71114), (3038, 66526), (3596, 56203), (3626, 55738), (3844, 52577), (4292, 47089), (4588, 44051), (5684, 35557), (6076, 33263), (6293, 32116), (6727, 30044), (7252, 27869), (7511, 26908), (8029, 25172), (12586, 16058), (13454, 15022)]

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