About the Number

30091980

30091979 ← → 30091981

2進数表記:1110010110010101011001100

漢数字表記:三千九万千九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 449 1 × 1117 1

素因数の和:1578
約数の個数: 48
約数和(自身を含む): 84520800
約数和(自身を除く): 54428820

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 449, 898, 1117, 1347, 1796, 2234, 2245, 2694, 3351, 4468, 4490, 5388, 5585, 6702, 6735, 8980, 11170, 13404, 13470, 16755, 22340, 26940, 33510, 67020, 501533, 1003066, 1504599, 2006132, 2507665, 3009198, 5015330, 6018396, 7522995, 10030660, 15045990, 30091980]

約数ペア:
[(1, 30091980), (2, 15045990), (3, 10030660), (4, 7522995), (5, 6018396), (6, 5015330), (10, 3009198), (12, 2507665), (15, 2006132), (20, 1504599), (30, 1003066), (60, 501533), (449, 67020), (898, 33510), (1117, 26940), (1347, 22340), (1796, 16755), (2234, 13470), (2245, 13404), (2694, 11170), (3351, 8980), (4468, 6735), (4490, 6702), (5388, 5585)]

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