About the Number

208290

208289 ← → 208291

2進数表記:110010110110100010

漢数字表記:二十万八千二百九十

素因数分解:

2 1 × 3 1 × 5 1 × 53 1 × 131 1

素因数の和:194
約数の個数: 32
約数和(自身を含む): 513216
約数和(自身を除く): 304926

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 131, 159, 262, 265, 318, 393, 530, 655, 786, 795, 1310, 1590, 1965, 3930, 6943, 13886, 20829, 34715, 41658, 69430, 104145, 208290]

約数ペア:
[(1, 208290), (2, 104145), (3, 69430), (5, 41658), (6, 34715), (10, 20829), (15, 13886), (30, 6943), (53, 3930), (106, 1965), (131, 1590), (159, 1310), (262, 795), (265, 786), (318, 655), (393, 530)]

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