About the Number

28001808

28001807 ← → 28001809

2進数表記:1101010110100011000010000

漢数字表記:二千八百万千八百八

素因数分解:

2 4 × 3 3 × 53 1 × 1223 1

素因数の和:1293
約数の個数: 80
約数和(自身を含む): 81959040
約数和(自身を除く): 53957232

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 53, 54, 72, 106, 108, 144, 159, 212, 216, 318, 424, 432, 477, 636, 848, 954, 1223, 1272, 1431, 1908, 2446, 2544, 2862, 3669, 3816, 4892, 5724, 7338, 7632, 9784, 11007, 11448, 14676, 19568, 22014, 22896, 29352, 33021, 44028, 58704, 64819, 66042, 88056, 129638, 132084, 176112, 194457, 259276, 264168, 388914, 518552, 528336, 583371, 777828, 1037104, 1166742, 1555656, 1750113, 2333484, 3111312, 3500226, 4666968, 7000452, 9333936, 14000904, 28001808]

約数ペア:
[(1, 28001808), (2, 14000904), (3, 9333936), (4, 7000452), (6, 4666968), (8, 3500226), (9, 3111312), (12, 2333484), (16, 1750113), (18, 1555656), (24, 1166742), (27, 1037104), (36, 777828), (48, 583371), (53, 528336), (54, 518552), (72, 388914), (106, 264168), (108, 259276), (144, 194457), (159, 176112), (212, 132084), (216, 129638), (318, 88056), (424, 66042), (432, 64819), (477, 58704), (636, 44028), (848, 33021), (954, 29352), (1223, 22896), (1272, 22014), (1431, 19568), (1908, 14676), (2446, 11448), (2544, 11007), (2862, 9784), (3669, 7632), (3816, 7338), (4892, 5724)]

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