About the Number

121988720

121988719 ← → 121988721

2進数表記:111010001010110011001110000

漢数字表記:一億二千百九十八万八千七百二十

素因数分解:

2 4 × 5 1 × 7 1 × 31 1 × 7027 1

素因数の和:7078
約数の個数: 80
約数和(自身を含む): 334645248
約数和(自身を除く): 212656528

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 7027, 8680, 14054, 17360, 28108, 35135, 49189, 56216, 70270, 98378, 112432, 140540, 196756, 217837, 245945, 281080, 393512, 435674, 491890, 562160, 787024, 871348, 983780, 1089185, 1524859, 1742696, 1967560, 2178370, 3049718, 3485392, 3935120, 4356740, 6099436, 7624295, 8713480, 12198872, 15248590, 17426960, 24397744, 30497180, 60994360, 121988720]

約数ペア:
[(1, 121988720), (2, 60994360), (4, 30497180), (5, 24397744), (7, 17426960), (8, 15248590), (10, 12198872), (14, 8713480), (16, 7624295), (20, 6099436), (28, 4356740), (31, 3935120), (35, 3485392), (40, 3049718), (56, 2178370), (62, 1967560), (70, 1742696), (80, 1524859), (112, 1089185), (124, 983780), (140, 871348), (155, 787024), (217, 562160), (248, 491890), (280, 435674), (310, 393512), (434, 281080), (496, 245945), (560, 217837), (620, 196756), (868, 140540), (1085, 112432), (1240, 98378), (1736, 70270), (2170, 56216), (2480, 49189), (3472, 35135), (4340, 28108), (7027, 17360), (8680, 14054)]

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