About the Number

79986780

79986779 ← → 79986781

2進数表記:100110001001000000001011100

漢数字表記:七千九百九十八万六千七百八十

素因数分解:

2 2 × 3 2 × 5 1 × 107 1 × 4153 1

素因数の和:4275
約数の個数: 72
約数和(自身を含む): 244953072
約数和(自身を除く): 164966292

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1284, 1605, 1926, 2140, 3210, 3852, 4153, 4815, 6420, 8306, 9630, 12459, 16612, 19260, 20765, 24918, 37377, 41530, 49836, 62295, 74754, 83060, 124590, 149508, 186885, 249180, 373770, 444371, 747540, 888742, 1333113, 1777484, 2221855, 2666226, 3999339, 4443710, 5332452, 6665565, 7998678, 8887420, 13331130, 15997356, 19996695, 26662260, 39993390, 79986780]

約数ペア:
[(1, 79986780), (2, 39993390), (3, 26662260), (4, 19996695), (5, 15997356), (6, 13331130), (9, 8887420), (10, 7998678), (12, 6665565), (15, 5332452), (18, 4443710), (20, 3999339), (30, 2666226), (36, 2221855), (45, 1777484), (60, 1333113), (90, 888742), (107, 747540), (180, 444371), (214, 373770), (321, 249180), (428, 186885), (535, 149508), (642, 124590), (963, 83060), (1070, 74754), (1284, 62295), (1605, 49836), (1926, 41530), (2140, 37377), (3210, 24918), (3852, 20765), (4153, 19260), (4815, 16612), (6420, 12459), (8306, 9630)]

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