About the Number

48987990

48987989 ← → 48987991

2進数表記:10111010110111111101010110

漢数字表記:四千八百九十八万七千九百九十

素因数分解:

2 1 × 3 4 × 5 1 × 197 1 × 307 1

素因数の和:523
約数の個数: 80
約数和(自身を含む): 132823152
約数和(自身を除く): 83835162

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 197, 270, 307, 394, 405, 591, 614, 810, 921, 985, 1182, 1535, 1773, 1842, 1970, 2763, 2955, 3070, 3546, 4605, 5319, 5526, 5910, 8289, 8865, 9210, 10638, 13815, 15957, 16578, 17730, 24867, 26595, 27630, 31914, 41445, 49734, 53190, 60479, 79785, 82890, 120958, 124335, 159570, 181437, 248670, 302395, 362874, 544311, 604790, 907185, 1088622, 1632933, 1814370, 2721555, 3265866, 4898799, 5443110, 8164665, 9797598, 16329330, 24493995, 48987990]

約数ペア:
[(1, 48987990), (2, 24493995), (3, 16329330), (5, 9797598), (6, 8164665), (9, 5443110), (10, 4898799), (15, 3265866), (18, 2721555), (27, 1814370), (30, 1632933), (45, 1088622), (54, 907185), (81, 604790), (90, 544311), (135, 362874), (162, 302395), (197, 248670), (270, 181437), (307, 159570), (394, 124335), (405, 120958), (591, 82890), (614, 79785), (810, 60479), (921, 53190), (985, 49734), (1182, 41445), (1535, 31914), (1773, 27630), (1842, 26595), (1970, 24867), (2763, 17730), (2955, 16578), (3070, 15957), (3546, 13815), (4605, 10638), (5319, 9210), (5526, 8865), (5910, 8289)]

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