About the Number

28013880

28013879 ← → 28013881

2進数表記:1101010110111010100111000

漢数字表記:二千八百一万三千八百八十

素因数分解:

2 3 × 3 1 × 5 1 × 47 1 × 4967 1

素因数の和:5028
約数の個数: 64
約数和(自身を含む): 85847040
約数和(自身を除く): 57833160

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 4967, 5640, 9934, 14901, 19868, 24835, 29802, 39736, 49670, 59604, 74505, 99340, 119208, 149010, 198680, 233449, 298020, 466898, 596040, 700347, 933796, 1167245, 1400694, 1867592, 2334490, 2801388, 3501735, 4668980, 5602776, 7003470, 9337960, 14006940, 28013880]

約数ペア:
[(1, 28013880), (2, 14006940), (3, 9337960), (4, 7003470), (5, 5602776), (6, 4668980), (8, 3501735), (10, 2801388), (12, 2334490), (15, 1867592), (20, 1400694), (24, 1167245), (30, 933796), (40, 700347), (47, 596040), (60, 466898), (94, 298020), (120, 233449), (141, 198680), (188, 149010), (235, 119208), (282, 99340), (376, 74505), (470, 59604), (564, 49670), (705, 39736), (940, 29802), (1128, 24835), (1410, 19868), (1880, 14901), (2820, 9934), (4967, 5640)]

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