About the Number

23181990

23181989 ← → 23181991

2進数表記:1011000011011101010100110

漢数字表記:二千三百十八万千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 13 1 × 59441 1

素因数の和:59464
約数の個数: 32
約数和(自身を含む): 59917536
約数和(自身を除く): 36735546

約数列:
[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 59441, 118882, 178323, 297205, 356646, 594410, 772733, 891615, 1545466, 1783230, 2318199, 3863665, 4636398, 7727330, 11590995, 23181990]

約数ペア:
[(1, 23181990), (2, 11590995), (3, 7727330), (5, 4636398), (6, 3863665), (10, 2318199), (13, 1783230), (15, 1545466), (26, 891615), (30, 772733), (39, 594410), (65, 356646), (78, 297205), (130, 178323), (195, 118882), (390, 59441)]

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