About the Number

128401065

128401064 ← → 128401066

2進数表記:111101001110011111010101001

漢数字表記:一億二千八百四十万千六十五

素因数分解:

3 3 × 5 1 × 13 1 × 23 1 × 3181 1

素因数の和:3231
約数の個数: 64
約数和(自身を含む): 256596480
約数和(自身を除く): 128195415

約数列:
[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 585, 621, 897, 1035, 1495, 1755, 2691, 3105, 3181, 4485, 8073, 9543, 13455, 15905, 28629, 40365, 41353, 47715, 73163, 85887, 124059, 143145, 206765, 219489, 365815, 372177, 429435, 620295, 658467, 951119, 1097445, 1116531, 1860885, 1975401, 2853357, 3292335, 4755595, 5582655, 8560071, 9877005, 14266785, 25680213, 42800355, 128401065]

約数ペア:
[(1, 128401065), (3, 42800355), (5, 25680213), (9, 14266785), (13, 9877005), (15, 8560071), (23, 5582655), (27, 4755595), (39, 3292335), (45, 2853357), (65, 1975401), (69, 1860885), (115, 1116531), (117, 1097445), (135, 951119), (195, 658467), (207, 620295), (299, 429435), (345, 372177), (351, 365815), (585, 219489), (621, 206765), (897, 143145), (1035, 124059), (1495, 85887), (1755, 73163), (2691, 47715), (3105, 41353), (3181, 40365), (4485, 28629), (8073, 15905), (9543, 13455)]

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