About the Number

81009408

81009407 ← → 81009409

2進数表記:100110101000001101100000000

漢数字表記:八千百万九千四百八

素因数分解:

2 8 × 3 1 × 313 1 × 337 1

素因数の和:669
約数の個数: 72
約数和(自身を含む): 216933808
約数和(自身を除く): 135924400

約数列:
[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 313, 337, 384, 626, 674, 768, 939, 1011, 1252, 1348, 1878, 2022, 2504, 2696, 3756, 4044, 5008, 5392, 7512, 8088, 10016, 10784, 15024, 16176, 20032, 21568, 30048, 32352, 40064, 43136, 60096, 64704, 80128, 86272, 105481, 120192, 129408, 210962, 240384, 258816, 316443, 421924, 632886, 843848, 1265772, 1687696, 2531544, 3375392, 5063088, 6750784, 10126176, 13501568, 20252352, 27003136, 40504704, 81009408]

約数ペア:
[(1, 81009408), (2, 40504704), (3, 27003136), (4, 20252352), (6, 13501568), (8, 10126176), (12, 6750784), (16, 5063088), (24, 3375392), (32, 2531544), (48, 1687696), (64, 1265772), (96, 843848), (128, 632886), (192, 421924), (256, 316443), (313, 258816), (337, 240384), (384, 210962), (626, 129408), (674, 120192), (768, 105481), (939, 86272), (1011, 80128), (1252, 64704), (1348, 60096), (1878, 43136), (2022, 40064), (2504, 32352), (2696, 30048), (3756, 21568), (4044, 20032), (5008, 16176), (5392, 15024), (7512, 10784), (8088, 10016)]

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