About the Number

30491280

30491279 ← → 30491281

2進数表記:1110100010100001010010000

漢数字表記:三千四十九万千二百八十

素因数分解:

2 4 × 3 2 × 5 1 × 42349 1

素因数の和:42368
約数の個数: 60
約数和(自身を含む): 102402300
約数和(自身を除く): 71911020

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 42349, 84698, 127047, 169396, 211745, 254094, 338792, 381141, 423490, 508188, 635235, 677584, 762282, 846980, 1016376, 1270470, 1524564, 1693960, 1905705, 2032752, 2540940, 3049128, 3387920, 3811410, 5081880, 6098256, 7622820, 10163760, 15245640, 30491280]

約数ペア:
[(1, 30491280), (2, 15245640), (3, 10163760), (4, 7622820), (5, 6098256), (6, 5081880), (8, 3811410), (9, 3387920), (10, 3049128), (12, 2540940), (15, 2032752), (16, 1905705), (18, 1693960), (20, 1524564), (24, 1270470), (30, 1016376), (36, 846980), (40, 762282), (45, 677584), (48, 635235), (60, 508188), (72, 423490), (80, 381141), (90, 338792), (120, 254094), (144, 211745), (180, 169396), (240, 127047), (360, 84698), (720, 42349)]

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