About the Number

39984980

39984979 ← → 39984981

2進数表記:10011000100001111101010100

漢数字表記:三千九百九十八万四千九百八十

素因数分解:

2 2 × 5 1 × 7 2 × 40801 1

素因数の和:40824
約数の個数: 36
約数和(自身を含む): 97679988
約数和(自身を除く): 57695008

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 40801, 81602, 163204, 204005, 285607, 408010, 571214, 816020, 1142428, 1428035, 1999249, 2856070, 3998498, 5712140, 7996996, 9996245, 19992490, 39984980]

約数ペア:
[(1, 39984980), (2, 19992490), (4, 9996245), (5, 7996996), (7, 5712140), (10, 3998498), (14, 2856070), (20, 1999249), (28, 1428035), (35, 1142428), (49, 816020), (70, 571214), (98, 408010), (140, 285607), (196, 204005), (245, 163204), (490, 81602), (980, 40801)]

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