About the Number

128973930

128973929 ← → 128973931

2進数表記:111101011111111110001101010

漢数字表記:一億二千八百九十七万三千九百三十

素因数分解:

2 1 × 3 1 × 5 1 × 139 1 × 157 1 × 197 1

素因数の和:503
約数の個数: 64
約数和(自身を含む): 315342720
約数和(自身を除く): 186368790

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 139, 157, 197, 278, 314, 394, 417, 471, 591, 695, 785, 834, 942, 985, 1182, 1390, 1570, 1970, 2085, 2355, 2955, 4170, 4710, 5910, 21823, 27383, 30929, 43646, 54766, 61858, 65469, 82149, 92787, 109115, 130938, 136915, 154645, 164298, 185574, 218230, 273830, 309290, 327345, 410745, 463935, 654690, 821490, 927870, 4299131, 8598262, 12897393, 21495655, 25794786, 42991310, 64486965, 128973930]

約数ペア:
[(1, 128973930), (2, 64486965), (3, 42991310), (5, 25794786), (6, 21495655), (10, 12897393), (15, 8598262), (30, 4299131), (139, 927870), (157, 821490), (197, 654690), (278, 463935), (314, 410745), (394, 327345), (417, 309290), (471, 273830), (591, 218230), (695, 185574), (785, 164298), (834, 154645), (942, 136915), (985, 130938), (1182, 109115), (1390, 92787), (1570, 82149), (1970, 65469), (2085, 61858), (2355, 54766), (2955, 43646), (4170, 30929), (4710, 27383), (5910, 21823)]

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