About the Number

12742890

12742889 ← → 12742891

2進数表記:110000100111000011101010

漢数字表記:千二百七十四万二千八百九十

素因数分解:

2 1 × 3 1 × 5 1 × 29 1 × 97 1 × 151 1

素因数の和:287
約数の個数: 64
約数和(自身を含む): 32175360
約数和(自身を除く): 19432470

約数列:
[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 97, 145, 151, 174, 194, 290, 291, 302, 435, 453, 485, 582, 755, 870, 906, 970, 1455, 1510, 2265, 2813, 2910, 4379, 4530, 5626, 8439, 8758, 13137, 14065, 14647, 16878, 21895, 26274, 28130, 29294, 42195, 43790, 43941, 65685, 73235, 84390, 87882, 131370, 146470, 219705, 424763, 439410, 849526, 1274289, 2123815, 2548578, 4247630, 6371445, 12742890]

約数ペア:
[(1, 12742890), (2, 6371445), (3, 4247630), (5, 2548578), (6, 2123815), (10, 1274289), (15, 849526), (29, 439410), (30, 424763), (58, 219705), (87, 146470), (97, 131370), (145, 87882), (151, 84390), (174, 73235), (194, 65685), (290, 43941), (291, 43790), (302, 42195), (435, 29294), (453, 28130), (485, 26274), (582, 21895), (755, 16878), (870, 14647), (906, 14065), (970, 13137), (1455, 8758), (1510, 8439), (2265, 5626), (2813, 4530), (2910, 4379)]

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