About the Number

129182720

129182719 ← → 129182721

2進数表記:111101100110010110000000000

漢数字表記:一億二千九百十八万二千七百二十

素因数分解:

2 10 × 5 1 × 23 1 × 1097 1

素因数の和:1145
約数の個数: 88
約数和(自身を含む): 323655264
約数和(自身を除く): 194472544

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 736, 920, 1024, 1097, 1280, 1472, 1840, 2194, 2560, 2944, 3680, 4388, 5120, 5485, 5888, 7360, 8776, 10970, 11776, 14720, 17552, 21940, 23552, 25231, 29440, 35104, 43880, 50462, 58880, 70208, 87760, 100924, 117760, 126155, 140416, 175520, 201848, 252310, 280832, 351040, 403696, 504620, 561664, 702080, 807392, 1009240, 1123328, 1404160, 1614784, 2018480, 2808320, 3229568, 4036960, 5616640, 6459136, 8073920, 12918272, 16147840, 25836544, 32295680, 64591360, 129182720]

約数ペア:
[(1, 129182720), (2, 64591360), (4, 32295680), (5, 25836544), (8, 16147840), (10, 12918272), (16, 8073920), (20, 6459136), (23, 5616640), (32, 4036960), (40, 3229568), (46, 2808320), (64, 2018480), (80, 1614784), (92, 1404160), (115, 1123328), (128, 1009240), (160, 807392), (184, 702080), (230, 561664), (256, 504620), (320, 403696), (368, 351040), (460, 280832), (512, 252310), (640, 201848), (736, 175520), (920, 140416), (1024, 126155), (1097, 117760), (1280, 100924), (1472, 87760), (1840, 70208), (2194, 58880), (2560, 50462), (2944, 43880), (3680, 35104), (4388, 29440), (5120, 25231), (5485, 23552), (5888, 21940), (7360, 17552), (8776, 14720), (10970, 11776)]

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