About the Number

121680090

121680089 ← → 121680091

2進数表記:111010000001011000011011010

漢数字表記:一億二千百六十八万九十

素因数分解:

2 1 × 3 3 × 5 1 × 7 1 × 64381 1

素因数の和:64404
約数の個数: 64
約数和(自身を含む): 370840320
約数和(自身を除く): 249160230

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 64381, 128762, 193143, 321905, 386286, 450667, 579429, 643810, 901334, 965715, 1158858, 1352001, 1738287, 1931430, 2253335, 2704002, 2897145, 3476574, 4056003, 4506670, 5794290, 6760005, 8112006, 8691435, 12168009, 13520010, 17382870, 20280015, 24336018, 40560030, 60840045, 121680090]

約数ペア:
[(1, 121680090), (2, 60840045), (3, 40560030), (5, 24336018), (6, 20280015), (7, 17382870), (9, 13520010), (10, 12168009), (14, 8691435), (15, 8112006), (18, 6760005), (21, 5794290), (27, 4506670), (30, 4056003), (35, 3476574), (42, 2897145), (45, 2704002), (54, 2253335), (63, 1931430), (70, 1738287), (90, 1352001), (105, 1158858), (126, 965715), (135, 901334), (189, 643810), (210, 579429), (270, 450667), (315, 386286), (378, 321905), (630, 193143), (945, 128762), (1890, 64381)]

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