About the Number

201520980

201520979 ← → 201520981

2進数表記:1100000000101111011101010100

漢数字表記:二億百五十二万九百八十

素因数分解:

2 2 × 3 3 × 5 1 × 373187 1

素因数の和:373205
約数の個数: 48
約数和(自身を含む): 626955840
約数和(自身を除く): 425434860

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 373187, 746374, 1119561, 1492748, 1865935, 2239122, 3358683, 3731870, 4478244, 5597805, 6717366, 7463740, 10076049, 11195610, 13434732, 16793415, 20152098, 22391220, 33586830, 40304196, 50380245, 67173660, 100760490, 201520980]

約数ペア:
[(1, 201520980), (2, 100760490), (3, 67173660), (4, 50380245), (5, 40304196), (6, 33586830), (9, 22391220), (10, 20152098), (12, 16793415), (15, 13434732), (18, 11195610), (20, 10076049), (27, 7463740), (30, 6717366), (36, 5597805), (45, 4478244), (54, 3731870), (60, 3358683), (90, 2239122), (108, 1865935), (135, 1492748), (180, 1119561), (270, 746374), (540, 373187)]

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