About the Number

68990640

68990639 ← → 68990641

2進数表記:100000111001011011010110000

漢数字表記:六千八百九十九万六百四十

素因数分解:

2 4 × 3 1 × 5 1 × 337 1 × 853 1

素因数の和:1206
約数の個数: 80
約数和(自身を含む): 214757088
約数和(自身を除く): 145766448

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 337, 674, 853, 1011, 1348, 1685, 1706, 2022, 2559, 2696, 3370, 3412, 4044, 4265, 5055, 5118, 5392, 6740, 6824, 8088, 8530, 10110, 10236, 12795, 13480, 13648, 16176, 17060, 20220, 20472, 25590, 26960, 34120, 40440, 40944, 51180, 68240, 80880, 102360, 204720, 287461, 574922, 862383, 1149844, 1437305, 1724766, 2299688, 2874610, 3449532, 4311915, 4599376, 5749220, 6899064, 8623830, 11498440, 13798128, 17247660, 22996880, 34495320, 68990640]

約数ペア:
[(1, 68990640), (2, 34495320), (3, 22996880), (4, 17247660), (5, 13798128), (6, 11498440), (8, 8623830), (10, 6899064), (12, 5749220), (15, 4599376), (16, 4311915), (20, 3449532), (24, 2874610), (30, 2299688), (40, 1724766), (48, 1437305), (60, 1149844), (80, 862383), (120, 574922), (240, 287461), (337, 204720), (674, 102360), (853, 80880), (1011, 68240), (1348, 51180), (1685, 40944), (1706, 40440), (2022, 34120), (2559, 26960), (2696, 25590), (3370, 20472), (3412, 20220), (4044, 17060), (4265, 16176), (5055, 13648), (5118, 13480), (5392, 12795), (6740, 10236), (6824, 10110), (8088, 8530)]

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