About the Number

389960740

389960739 ← → 389960741

2進数表記:10111001111100101010000100100

漢数字表記:三億八千九百九十六万七百四十

素因数分解:

2 2 × 5 1 × 13 2 × 113 1 × 1021 1

素因数の和:1169
約数の個数: 72
約数和(自身を含む): 895480488
約数和(自身を除く): 505519748

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 169, 226, 260, 338, 452, 565, 676, 845, 1021, 1130, 1469, 1690, 2042, 2260, 2938, 3380, 4084, 5105, 5876, 7345, 10210, 13273, 14690, 19097, 20420, 26546, 29380, 38194, 53092, 66365, 76388, 95485, 115373, 132730, 172549, 190970, 230746, 265460, 345098, 381940, 461492, 576865, 690196, 862745, 1153730, 1499849, 1725490, 2307460, 2999698, 3450980, 5999396, 7499245, 14998490, 19498037, 29996980, 38996074, 77992148, 97490185, 194980370, 389960740]

約数ペア:
[(1, 389960740), (2, 194980370), (4, 97490185), (5, 77992148), (10, 38996074), (13, 29996980), (20, 19498037), (26, 14998490), (52, 7499245), (65, 5999396), (113, 3450980), (130, 2999698), (169, 2307460), (226, 1725490), (260, 1499849), (338, 1153730), (452, 862745), (565, 690196), (676, 576865), (845, 461492), (1021, 381940), (1130, 345098), (1469, 265460), (1690, 230746), (2042, 190970), (2260, 172549), (2938, 132730), (3380, 115373), (4084, 95485), (5105, 76388), (5876, 66365), (7345, 53092), (10210, 38194), (13273, 29380), (14690, 26546), (19097, 20420)]

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