About the Number

81135240

81135239 ← → 81135241

2進数表記:100110101100000011010001000

漢数字表記:八千百十三万五千二百四十

素因数分解:

2 3 × 3 1 × 5 1 × 109 1 × 6203 1

素因数の和:6326
約数の個数: 64
約数和(自身を含む): 245678400
約数和(自身を除く): 164543160

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 109, 120, 218, 327, 436, 545, 654, 872, 1090, 1308, 1635, 2180, 2616, 3270, 4360, 6203, 6540, 12406, 13080, 18609, 24812, 31015, 37218, 49624, 62030, 74436, 93045, 124060, 148872, 186090, 248120, 372180, 676127, 744360, 1352254, 2028381, 2704508, 3380635, 4056762, 5409016, 6761270, 8113524, 10141905, 13522540, 16227048, 20283810, 27045080, 40567620, 81135240]

約数ペア:
[(1, 81135240), (2, 40567620), (3, 27045080), (4, 20283810), (5, 16227048), (6, 13522540), (8, 10141905), (10, 8113524), (12, 6761270), (15, 5409016), (20, 4056762), (24, 3380635), (30, 2704508), (40, 2028381), (60, 1352254), (109, 744360), (120, 676127), (218, 372180), (327, 248120), (436, 186090), (545, 148872), (654, 124060), (872, 93045), (1090, 74436), (1308, 62030), (1635, 49624), (2180, 37218), (2616, 31015), (3270, 24812), (4360, 18609), (6203, 13080), (6540, 12406)]

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