About the Number

289310720

289310719 ← → 289310721

2進数表記:10001001111101000100000000000

漢数字表記:二億八千九百三十一万七百二十

素因数分解:

2 11 × 5 1 × 19 1 × 1487 1

素因数の和:1533
約数の個数: 96
約数和(自身を含む): 731203200
約数和(自身を除く): 441892480

約数列:
[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1024, 1216, 1280, 1487, 1520, 2048, 2432, 2560, 2974, 3040, 4864, 5120, 5948, 6080, 7435, 9728, 10240, 11896, 12160, 14870, 19456, 23792, 24320, 28253, 29740, 38912, 47584, 48640, 56506, 59480, 95168, 97280, 113012, 118960, 141265, 190336, 194560, 226024, 237920, 282530, 380672, 452048, 475840, 565060, 761344, 904096, 951680, 1130120, 1522688, 1808192, 1903360, 2260240, 3045376, 3616384, 3806720, 4520480, 7232768, 7613440, 9040960, 14465536, 15226880, 18081920, 28931072, 36163840, 57862144, 72327680, 144655360, 289310720]

約数ペア:
[(1, 289310720), (2, 144655360), (4, 72327680), (5, 57862144), (8, 36163840), (10, 28931072), (16, 18081920), (19, 15226880), (20, 14465536), (32, 9040960), (38, 7613440), (40, 7232768), (64, 4520480), (76, 3806720), (80, 3616384), (95, 3045376), (128, 2260240), (152, 1903360), (160, 1808192), (190, 1522688), (256, 1130120), (304, 951680), (320, 904096), (380, 761344), (512, 565060), (608, 475840), (640, 452048), (760, 380672), (1024, 282530), (1216, 237920), (1280, 226024), (1487, 194560), (1520, 190336), (2048, 141265), (2432, 118960), (2560, 113012), (2974, 97280), (3040, 95168), (4864, 59480), (5120, 56506), (5948, 48640), (6080, 47584), (7435, 38912), (9728, 29740), (10240, 28253), (11896, 24320), (12160, 23792), (14870, 19456)]

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