About the Number

128081790

128081789 ← → 128081791

2進数表記:111101000100101111101111110

漢数字表記:一億二千八百八万千七百九十

素因数分解:

2 1 × 3 3 × 5 1 × 37 1 × 12821 1

素因数の和:12874
約数の個数: 64
約数和(自身を含む): 350809920
約数和(自身を除く): 222728130

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 3330, 4995, 9990, 12821, 25642, 38463, 64105, 76926, 115389, 128210, 192315, 230778, 346167, 384630, 474377, 576945, 692334, 948754, 1153890, 1423131, 1730835, 2371885, 2846262, 3461670, 4269393, 4743770, 7115655, 8538786, 12808179, 14231310, 21346965, 25616358, 42693930, 64040895, 128081790]

約数ペア:
[(1, 128081790), (2, 64040895), (3, 42693930), (5, 25616358), (6, 21346965), (9, 14231310), (10, 12808179), (15, 8538786), (18, 7115655), (27, 4743770), (30, 4269393), (37, 3461670), (45, 2846262), (54, 2371885), (74, 1730835), (90, 1423131), (111, 1153890), (135, 948754), (185, 692334), (222, 576945), (270, 474377), (333, 384630), (370, 346167), (555, 230778), (666, 192315), (999, 128210), (1110, 115389), (1665, 76926), (1998, 64105), (3330, 38463), (4995, 25642), (9990, 12821)]

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