About the Number

85681680

85681679 ← → 85681681

2進数表記:101000110110110011000010000

漢数字表記:八千五百六十八万千六百八十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 51001 1

素因数の和:51024
約数の個数: 80
約数和(自身を含む): 303563904
約数和(自身を除く): 217882224

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 51001, 102002, 153003, 204004, 255005, 306006, 357007, 408008, 510010, 612012, 714014, 765015, 816016, 1020020, 1071021, 1224024, 1428028, 1530030, 1785035, 2040040, 2142042, 2448048, 2856056, 3060060, 3570070, 4080080, 4284084, 5355105, 5712112, 6120120, 7140140, 8568168, 10710210, 12240240, 14280280, 17136336, 21420420, 28560560, 42840840, 85681680]

約数ペア:
[(1, 85681680), (2, 42840840), (3, 28560560), (4, 21420420), (5, 17136336), (6, 14280280), (7, 12240240), (8, 10710210), (10, 8568168), (12, 7140140), (14, 6120120), (15, 5712112), (16, 5355105), (20, 4284084), (21, 4080080), (24, 3570070), (28, 3060060), (30, 2856056), (35, 2448048), (40, 2142042), (42, 2040040), (48, 1785035), (56, 1530030), (60, 1428028), (70, 1224024), (80, 1071021), (84, 1020020), (105, 816016), (112, 765015), (120, 714014), (140, 612012), (168, 510010), (210, 408008), (240, 357007), (280, 306006), (336, 255005), (420, 204004), (560, 153003), (840, 102002), (1680, 51001)]

このpageの処理時間: 0.22240996360778809 seconds