About the Number

81302172

81302171 ← → 81302173

2進数表記:100110110001001001010011100

漢数字表記:八千百三十万二千百七十二

素因数分解:

2 2 × 3 1 × 7 2 × 37 2 × 101 1

素因数の和:196
約数の個数: 108
約数和(自身を含む): 229048344
約数和(自身を除く): 147746172

約数列:
[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 101, 111, 147, 148, 196, 202, 222, 259, 294, 303, 404, 444, 518, 588, 606, 707, 777, 1036, 1212, 1369, 1414, 1554, 1813, 2121, 2738, 2828, 3108, 3626, 3737, 4107, 4242, 4949, 5439, 5476, 7252, 7474, 8214, 8484, 9583, 9898, 10878, 11211, 14847, 14948, 16428, 19166, 19796, 21756, 22422, 26159, 28749, 29694, 38332, 44844, 52318, 57498, 59388, 67081, 78477, 104636, 114996, 134162, 138269, 156954, 183113, 201243, 268324, 276538, 313908, 366226, 402486, 414807, 549339, 553076, 732452, 804972, 829614, 967883, 1098678, 1659228, 1935766, 2197356, 2903649, 3871532, 5807298, 6775181, 11614596, 13550362, 20325543, 27100724, 40651086, 81302172]

約数ペア:
[(1, 81302172), (2, 40651086), (3, 27100724), (4, 20325543), (6, 13550362), (7, 11614596), (12, 6775181), (14, 5807298), (21, 3871532), (28, 2903649), (37, 2197356), (42, 1935766), (49, 1659228), (74, 1098678), (84, 967883), (98, 829614), (101, 804972), (111, 732452), (147, 553076), (148, 549339), (196, 414807), (202, 402486), (222, 366226), (259, 313908), (294, 276538), (303, 268324), (404, 201243), (444, 183113), (518, 156954), (588, 138269), (606, 134162), (707, 114996), (777, 104636), (1036, 78477), (1212, 67081), (1369, 59388), (1414, 57498), (1554, 52318), (1813, 44844), (2121, 38332), (2738, 29694), (2828, 28749), (3108, 26159), (3626, 22422), (3737, 21756), (4107, 19796), (4242, 19166), (4949, 16428), (5439, 14948), (5476, 14847), (7252, 11211), (7474, 10878), (8214, 9898), (8484, 9583)]

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