About the Number

129381888

129381887 ← → 129381889

2進数表記:111101101100011011000000000

漢数字表記:一億二千九百三十八万千八百八十八

素因数分解:

2 9 × 3 1 × 131 1 × 643 1

素因数の和:795
約数の個数: 80
約数和(自身を含む): 347852736
約数和(自身を除く): 218470848

約数列:
[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 256, 262, 384, 393, 512, 524, 643, 768, 786, 1048, 1286, 1536, 1572, 1929, 2096, 2572, 3144, 3858, 4192, 5144, 6288, 7716, 8384, 10288, 12576, 15432, 16768, 20576, 25152, 30864, 33536, 41152, 50304, 61728, 67072, 82304, 84233, 100608, 123456, 164608, 168466, 201216, 246912, 252699, 329216, 336932, 493824, 505398, 673864, 987648, 1010796, 1347728, 2021592, 2695456, 4043184, 5390912, 8086368, 10781824, 16172736, 21563648, 32345472, 43127296, 64690944, 129381888]

約数ペア:
[(1, 129381888), (2, 64690944), (3, 43127296), (4, 32345472), (6, 21563648), (8, 16172736), (12, 10781824), (16, 8086368), (24, 5390912), (32, 4043184), (48, 2695456), (64, 2021592), (96, 1347728), (128, 1010796), (131, 987648), (192, 673864), (256, 505398), (262, 493824), (384, 336932), (393, 329216), (512, 252699), (524, 246912), (643, 201216), (768, 168466), (786, 164608), (1048, 123456), (1286, 100608), (1536, 84233), (1572, 82304), (1929, 67072), (2096, 61728), (2572, 50304), (3144, 41152), (3858, 33536), (4192, 30864), (5144, 25152), (6288, 20576), (7716, 16768), (8384, 15432), (10288, 12576)]

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