About the Number

131181420

131181419 ← → 131181421

2進数表記:111110100011010101101101100

漢数字表記:一億三千百十八万千四百二十

素因数分解:

2 2 × 3 1 × 5 1 × 23 2 × 4133 1

素因数の和:4191
約数の個数: 72
約数和(自身を含む): 384065136
約数和(自身を除く): 252883716

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 529, 690, 1058, 1380, 1587, 2116, 2645, 3174, 4133, 5290, 6348, 7935, 8266, 10580, 12399, 15870, 16532, 20665, 24798, 31740, 41330, 49596, 61995, 82660, 95059, 123990, 190118, 247980, 285177, 380236, 475295, 570354, 950590, 1140708, 1425885, 1901180, 2186357, 2851770, 4372714, 5703540, 6559071, 8745428, 10931785, 13118142, 21863570, 26236284, 32795355, 43727140, 65590710, 131181420]

約数ペア:
[(1, 131181420), (2, 65590710), (3, 43727140), (4, 32795355), (5, 26236284), (6, 21863570), (10, 13118142), (12, 10931785), (15, 8745428), (20, 6559071), (23, 5703540), (30, 4372714), (46, 2851770), (60, 2186357), (69, 1901180), (92, 1425885), (115, 1140708), (138, 950590), (230, 570354), (276, 475295), (345, 380236), (460, 285177), (529, 247980), (690, 190118), (1058, 123990), (1380, 95059), (1587, 82660), (2116, 61995), (2645, 49596), (3174, 41330), (4133, 31740), (5290, 24798), (6348, 20665), (7935, 16532), (8266, 15870), (10580, 12399)]

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