About the Number

12881988

12881987 ← → 12881989

2進数表記:110001001001000001000100

漢数字表記:千二百八十八万千九百八十八

素因数分解:

2 2 × 3 2 × 7 1 × 17 1 × 31 1 × 97 1

素因数の和:162
約数の個数: 144
約数和(自身を含む): 41094144
約数和(自身を除く): 28212156

約数列:
[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 31, 34, 36, 42, 51, 62, 63, 68, 84, 93, 97, 102, 119, 124, 126, 153, 186, 194, 204, 217, 238, 252, 279, 291, 306, 357, 372, 388, 434, 476, 527, 558, 582, 612, 651, 679, 714, 868, 873, 1054, 1071, 1116, 1164, 1302, 1358, 1428, 1581, 1649, 1746, 1953, 2037, 2108, 2142, 2604, 2716, 3007, 3162, 3298, 3492, 3689, 3906, 4074, 4284, 4743, 4947, 6014, 6111, 6324, 6596, 7378, 7812, 8148, 9021, 9486, 9894, 11067, 11543, 12028, 12222, 14756, 14841, 18042, 18972, 19788, 21049, 22134, 23086, 24444, 27063, 29682, 33201, 34629, 36084, 42098, 44268, 46172, 51119, 54126, 59364, 63147, 66402, 69258, 84196, 102238, 103887, 108252, 126294, 132804, 138516, 153357, 189441, 204476, 207774, 252588, 306714, 357833, 378882, 415548, 460071, 613428, 715666, 757764, 920142, 1073499, 1431332, 1840284, 2146998, 3220497, 4293996, 6440994, 12881988]

約数ペア:
[(1, 12881988), (2, 6440994), (3, 4293996), (4, 3220497), (6, 2146998), (7, 1840284), (9, 1431332), (12, 1073499), (14, 920142), (17, 757764), (18, 715666), (21, 613428), (28, 460071), (31, 415548), (34, 378882), (36, 357833), (42, 306714), (51, 252588), (62, 207774), (63, 204476), (68, 189441), (84, 153357), (93, 138516), (97, 132804), (102, 126294), (119, 108252), (124, 103887), (126, 102238), (153, 84196), (186, 69258), (194, 66402), (204, 63147), (217, 59364), (238, 54126), (252, 51119), (279, 46172), (291, 44268), (306, 42098), (357, 36084), (372, 34629), (388, 33201), (434, 29682), (476, 27063), (527, 24444), (558, 23086), (582, 22134), (612, 21049), (651, 19788), (679, 18972), (714, 18042), (868, 14841), (873, 14756), (1054, 12222), (1071, 12028), (1116, 11543), (1164, 11067), (1302, 9894), (1358, 9486), (1428, 9021), (1581, 8148), (1649, 7812), (1746, 7378), (1953, 6596), (2037, 6324), (2108, 6111), (2142, 6014), (2604, 4947), (2716, 4743), (3007, 4284), (3162, 4074), (3298, 3906), (3492, 3689)]

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