About the Number

28988820

28988819 ← → 28988821

2進数表記:1101110100101010110010100

漢数字表記:二千八百九十八万八千八百二十

素因数分解:

2 2 × 3 3 × 5 1 × 7 1 × 7669 1

素因数の和:7694
約数の個数: 96
約数和(自身を含む): 103084800
約数和(自身を除く): 74095980

約数列:
[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 7669, 15338, 23007, 30676, 38345, 46014, 53683, 69021, 76690, 92028, 107366, 115035, 138042, 153380, 161049, 207063, 214732, 230070, 268415, 276084, 322098, 345105, 414126, 460140, 483147, 536830, 644196, 690210, 805245, 828252, 966294, 1035315, 1073660, 1380420, 1449441, 1610490, 1932588, 2070630, 2415735, 2898882, 3220980, 4141260, 4831470, 5797764, 7247205, 9662940, 14494410, 28988820]

約数ペア:
[(1, 28988820), (2, 14494410), (3, 9662940), (4, 7247205), (5, 5797764), (6, 4831470), (7, 4141260), (9, 3220980), (10, 2898882), (12, 2415735), (14, 2070630), (15, 1932588), (18, 1610490), (20, 1449441), (21, 1380420), (27, 1073660), (28, 1035315), (30, 966294), (35, 828252), (36, 805245), (42, 690210), (45, 644196), (54, 536830), (60, 483147), (63, 460140), (70, 414126), (84, 345105), (90, 322098), (105, 276084), (108, 268415), (126, 230070), (135, 214732), (140, 207063), (180, 161049), (189, 153380), (210, 138042), (252, 115035), (270, 107366), (315, 92028), (378, 76690), (420, 69021), (540, 53683), (630, 46014), (756, 38345), (945, 30676), (1260, 23007), (1890, 15338), (3780, 7669)]

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