About the Number

201023980

201023979 ← → 201023981

2進数表記:1011111110110110000111101100

漢数字表記:二億百二万三千九百八十

素因数分解:

2 2 × 5 1 × 17 1 × 631 1 × 937 1

素因数の和:1594
約数の個数: 48
約数和(自身を含む): 448168896
約数和(自身を除く): 247144916

約数列:
[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 631, 937, 1262, 1874, 2524, 3155, 3748, 4685, 6310, 9370, 10727, 12620, 15929, 18740, 21454, 31858, 42908, 53635, 63716, 79645, 107270, 159290, 214540, 318580, 591247, 1182494, 2364988, 2956235, 5912470, 10051199, 11824940, 20102398, 40204796, 50255995, 100511990, 201023980]

約数ペア:
[(1, 201023980), (2, 100511990), (4, 50255995), (5, 40204796), (10, 20102398), (17, 11824940), (20, 10051199), (34, 5912470), (68, 2956235), (85, 2364988), (170, 1182494), (340, 591247), (631, 318580), (937, 214540), (1262, 159290), (1874, 107270), (2524, 79645), (3155, 63716), (3748, 53635), (4685, 42908), (6310, 31858), (9370, 21454), (10727, 18740), (12620, 15929)]

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