About the Number

81020070

81020069 ← → 81020071

2進数表記:100110101000100010010100110

漢数字表記:八千百二万七十

素因数分解:

2 1 × 3 2 × 5 1 × 283 1 × 3181 1

素因数の和:3477
約数の個数: 48
約数和(自身を含む): 211462992
約数和(自身を除く): 130442922

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 283, 566, 849, 1415, 1698, 2547, 2830, 3181, 4245, 5094, 6362, 8490, 9543, 12735, 15905, 19086, 25470, 28629, 31810, 47715, 57258, 95430, 143145, 286290, 900223, 1800446, 2700669, 4501115, 5401338, 8102007, 9002230, 13503345, 16204014, 27006690, 40510035, 81020070]

約数ペア:
[(1, 81020070), (2, 40510035), (3, 27006690), (5, 16204014), (6, 13503345), (9, 9002230), (10, 8102007), (15, 5401338), (18, 4501115), (30, 2700669), (45, 1800446), (90, 900223), (283, 286290), (566, 143145), (849, 95430), (1415, 57258), (1698, 47715), (2547, 31810), (2830, 28629), (3181, 25470), (4245, 19086), (5094, 15905), (6362, 12735), (8490, 9543)]

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