About the Number

20231900

20231899 ← → 20231901

2進数表記:1001101001011011011011100

漢数字表記:二千二十三万千九百

素因数分解:

2 2 × 5 2 × 13 1 × 79 1 × 197 1

素因数の和:303
約数の個数: 72
約数和(自身を含む): 48121920
約数和(自身を除く): 27890020

約数列:
[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 197, 260, 316, 325, 394, 395, 650, 788, 790, 985, 1027, 1300, 1580, 1970, 1975, 2054, 2561, 3940, 3950, 4108, 4925, 5122, 5135, 7900, 9850, 10244, 10270, 12805, 15563, 19700, 20540, 25610, 25675, 31126, 51220, 51350, 62252, 64025, 77815, 102700, 128050, 155630, 202319, 256100, 311260, 389075, 404638, 778150, 809276, 1011595, 1556300, 2023190, 4046380, 5057975, 10115950, 20231900]

約数ペア:
[(1, 20231900), (2, 10115950), (4, 5057975), (5, 4046380), (10, 2023190), (13, 1556300), (20, 1011595), (25, 809276), (26, 778150), (50, 404638), (52, 389075), (65, 311260), (79, 256100), (100, 202319), (130, 155630), (158, 128050), (197, 102700), (260, 77815), (316, 64025), (325, 62252), (394, 51350), (395, 51220), (650, 31126), (788, 25675), (790, 25610), (985, 20540), (1027, 19700), (1300, 15563), (1580, 12805), (1970, 10270), (1975, 10244), (2054, 9850), (2561, 7900), (3940, 5135), (3950, 5122), (4108, 4925)]

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