About the Number

12946780

12946779 ← → 12946781

2進数表記:110001011000110101011100

漢数字表記:千二百九十四万六千七百八十

素因数分解:

2 2 × 5 1 × 7 2 × 11 1 × 1201 1

素因数の和:1235
約数の個数: 72
約数和(自身を含む): 34531056
約数和(自身を除く): 21584276

約数列:
[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1201, 1540, 2156, 2402, 2695, 4804, 5390, 6005, 8407, 10780, 12010, 13211, 16814, 24020, 26422, 33628, 42035, 52844, 58849, 66055, 84070, 92477, 117698, 132110, 168140, 184954, 235396, 264220, 294245, 369908, 462385, 588490, 647339, 924770, 1176980, 1294678, 1849540, 2589356, 3236695, 6473390, 12946780]

約数ペア:
[(1, 12946780), (2, 6473390), (4, 3236695), (5, 2589356), (7, 1849540), (10, 1294678), (11, 1176980), (14, 924770), (20, 647339), (22, 588490), (28, 462385), (35, 369908), (44, 294245), (49, 264220), (55, 235396), (70, 184954), (77, 168140), (98, 132110), (110, 117698), (140, 92477), (154, 84070), (196, 66055), (220, 58849), (245, 52844), (308, 42035), (385, 33628), (490, 26422), (539, 24020), (770, 16814), (980, 13211), (1078, 12010), (1201, 10780), (1540, 8407), (2156, 6005), (2402, 5390), (2695, 4804)]

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