About the Number

131389920

131389919 ← → 131389921

2進数表記:111110101001101100111100000

漢数字表記:一億三千百三十八万九千九百二十

素因数分解:

2 5 × 3 2 × 5 1 × 91243 1

素因数の和:91264
約数の個数: 72
約数和(自身を含む): 448373016
約数和(自身を除く): 316983096

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 91243, 182486, 273729, 364972, 456215, 547458, 729944, 821187, 912430, 1094916, 1368645, 1459888, 1642374, 1824860, 2189832, 2737290, 2919776, 3284748, 3649720, 4105935, 4379664, 5474580, 6569496, 7299440, 8211870, 8759328, 10949160, 13138992, 14598880, 16423740, 21898320, 26277984, 32847480, 43796640, 65694960, 131389920]

約数ペア:
[(1, 131389920), (2, 65694960), (3, 43796640), (4, 32847480), (5, 26277984), (6, 21898320), (8, 16423740), (9, 14598880), (10, 13138992), (12, 10949160), (15, 8759328), (16, 8211870), (18, 7299440), (20, 6569496), (24, 5474580), (30, 4379664), (32, 4105935), (36, 3649720), (40, 3284748), (45, 2919776), (48, 2737290), (60, 2189832), (72, 1824860), (80, 1642374), (90, 1459888), (96, 1368645), (120, 1094916), (144, 912430), (160, 821187), (180, 729944), (240, 547458), (288, 456215), (360, 364972), (480, 273729), (720, 182486), (1440, 91243)]

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