About the Number

212439745

212439744 ← → 212439746

2進数表記:1100101010011001001011000001

漢数字表記:二億千二百四十三万九千七百四十五

素因数分解:

5 1 × 7 2 × 31 1 × 83 1 × 337 1

素因数の和:470
約数の個数: 48
約数和(自身を含む): 310722048
約数和(自身を除く): 98282303

約数列:
[1, 5, 7, 31, 35, 49, 83, 155, 217, 245, 337, 415, 581, 1085, 1519, 1685, 2359, 2573, 2905, 4067, 7595, 10447, 11795, 12865, 16513, 18011, 20335, 27971, 52235, 73129, 82565, 90055, 126077, 139855, 195797, 365645, 511903, 630385, 867101, 978985, 1370579, 2559515, 4335505, 6069707, 6852895, 30348535, 42487949, 212439745]

約数ペア:
[(1, 212439745), (5, 42487949), (7, 30348535), (31, 6852895), (35, 6069707), (49, 4335505), (83, 2559515), (155, 1370579), (217, 978985), (245, 867101), (337, 630385), (415, 511903), (581, 365645), (1085, 195797), (1519, 139855), (1685, 126077), (2359, 90055), (2573, 82565), (2905, 73129), (4067, 52235), (7595, 27971), (10447, 20335), (11795, 18011), (12865, 16513)]

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