About the Number

386390988

386390987 ← → 386390989

2進数表記:10111000001111101101111001100

漢数字表記:三億八千六百三十九万九百八十八

素因数分解:

2 2 × 3 2 × 53 1 × 313 1 × 647 1

素因数の和:1023
約数の個数: 72
約数和(自身を含む): 999861408
約数和(自身を除く): 613470420

約数列:
[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 313, 318, 477, 626, 636, 647, 939, 954, 1252, 1294, 1878, 1908, 1941, 2588, 2817, 3756, 3882, 5634, 5823, 7764, 11268, 11646, 16589, 23292, 33178, 34291, 49767, 66356, 68582, 99534, 102873, 137164, 149301, 199068, 202511, 205746, 298602, 308619, 405022, 411492, 597204, 607533, 617238, 810044, 1215066, 1234476, 1822599, 2430132, 3645198, 7290396, 10733083, 21466166, 32199249, 42932332, 64398498, 96597747, 128796996, 193195494, 386390988]

約数ペア:
[(1, 386390988), (2, 193195494), (3, 128796996), (4, 96597747), (6, 64398498), (9, 42932332), (12, 32199249), (18, 21466166), (36, 10733083), (53, 7290396), (106, 3645198), (159, 2430132), (212, 1822599), (313, 1234476), (318, 1215066), (477, 810044), (626, 617238), (636, 607533), (647, 597204), (939, 411492), (954, 405022), (1252, 308619), (1294, 298602), (1878, 205746), (1908, 202511), (1941, 199068), (2588, 149301), (2817, 137164), (3756, 102873), (3882, 99534), (5634, 68582), (5823, 66356), (7764, 49767), (11268, 34291), (11646, 33178), (16589, 23292)]

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