About the Number

172728990

172728989 ← → 172728991

2進数表記:1010010010111010001010011110

漢数字表記:一億七千二百七十二万八千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 7 1 × 59 1 × 1549 1

素因数の和:1631
約数の個数: 128
約数和(自身を含む): 535680000
約数和(自身を除く): 362951010

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 59, 63, 70, 90, 105, 118, 126, 135, 177, 189, 210, 270, 295, 315, 354, 378, 413, 531, 590, 630, 826, 885, 945, 1062, 1239, 1549, 1593, 1770, 1890, 2065, 2478, 2655, 3098, 3186, 3717, 4130, 4647, 5310, 6195, 7434, 7745, 7965, 9294, 10843, 11151, 12390, 13941, 15490, 15930, 18585, 21686, 22302, 23235, 27882, 32529, 37170, 41823, 46470, 54215, 55755, 65058, 69705, 83646, 91391, 97587, 108430, 111510, 139410, 162645, 182782, 195174, 209115, 274173, 292761, 325290, 418230, 456955, 487935, 548346, 585522, 639737, 822519, 913910, 975870, 1279474, 1370865, 1463805, 1645038, 1919211, 2467557, 2741730, 2927610, 3198685, 3838422, 4112595, 4935114, 5757633, 6397370, 8225190, 9596055, 11515266, 12337785, 17272899, 19192110, 24675570, 28788165, 34545798, 57576330, 86364495, 172728990]

約数ペア:
[(1, 172728990), (2, 86364495), (3, 57576330), (5, 34545798), (6, 28788165), (7, 24675570), (9, 19192110), (10, 17272899), (14, 12337785), (15, 11515266), (18, 9596055), (21, 8225190), (27, 6397370), (30, 5757633), (35, 4935114), (42, 4112595), (45, 3838422), (54, 3198685), (59, 2927610), (63, 2741730), (70, 2467557), (90, 1919211), (105, 1645038), (118, 1463805), (126, 1370865), (135, 1279474), (177, 975870), (189, 913910), (210, 822519), (270, 639737), (295, 585522), (315, 548346), (354, 487935), (378, 456955), (413, 418230), (531, 325290), (590, 292761), (630, 274173), (826, 209115), (885, 195174), (945, 182782), (1062, 162645), (1239, 139410), (1549, 111510), (1593, 108430), (1770, 97587), (1890, 91391), (2065, 83646), (2478, 69705), (2655, 65058), (3098, 55755), (3186, 54215), (3717, 46470), (4130, 41823), (4647, 37170), (5310, 32529), (6195, 27882), (7434, 23235), (7745, 22302), (7965, 21686), (9294, 18585), (10843, 15930), (11151, 15490), (12390, 13941)]

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