About the Number

81742680

81742679 ← → 81742681

2進数表記:100110111110100101101011000

漢数字表記:八千百七十四万二千六百八十

素因数分解:

2 3 × 3 2 × 5 1 × 67 1 × 3389 1

素因数の和:3473
約数の個数: 96
約数和(自身を含む): 269708400
約数和(自身を除く): 187965720

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 67, 72, 90, 120, 134, 180, 201, 268, 335, 360, 402, 536, 603, 670, 804, 1005, 1206, 1340, 1608, 2010, 2412, 2680, 3015, 3389, 4020, 4824, 6030, 6778, 8040, 10167, 12060, 13556, 16945, 20334, 24120, 27112, 30501, 33890, 40668, 50835, 61002, 67780, 81336, 101670, 122004, 135560, 152505, 203340, 227063, 244008, 305010, 406680, 454126, 610020, 681189, 908252, 1135315, 1220040, 1362378, 1816504, 2043567, 2270630, 2724756, 3405945, 4087134, 4541260, 5449512, 6811890, 8174268, 9082520, 10217835, 13623780, 16348536, 20435670, 27247560, 40871340, 81742680]

約数ペア:
[(1, 81742680), (2, 40871340), (3, 27247560), (4, 20435670), (5, 16348536), (6, 13623780), (8, 10217835), (9, 9082520), (10, 8174268), (12, 6811890), (15, 5449512), (18, 4541260), (20, 4087134), (24, 3405945), (30, 2724756), (36, 2270630), (40, 2043567), (45, 1816504), (60, 1362378), (67, 1220040), (72, 1135315), (90, 908252), (120, 681189), (134, 610020), (180, 454126), (201, 406680), (268, 305010), (335, 244008), (360, 227063), (402, 203340), (536, 152505), (603, 135560), (670, 122004), (804, 101670), (1005, 81336), (1206, 67780), (1340, 61002), (1608, 50835), (2010, 40668), (2412, 33890), (2680, 30501), (3015, 27112), (3389, 24120), (4020, 20334), (4824, 16945), (6030, 13556), (6778, 12060), (8040, 10167)]

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