About the Number

120787290

120787289 ← → 120787291

2進数表記:111001100110001000101011010

漢数字表記:一億二千七十八万七千二百九十

素因数分解:

2 1 × 3 2 × 5 1 × 13 1 × 103237 1

素因数の和:103263
約数の個数: 48
約数和(自身を含む): 338207688
約数和(自身を除く): 217420398

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 103237, 206474, 309711, 516185, 619422, 929133, 1032370, 1342081, 1548555, 1858266, 2684162, 3097110, 4026243, 4645665, 6710405, 8052486, 9291330, 12078729, 13420810, 20131215, 24157458, 40262430, 60393645, 120787290]

約数ペア:
[(1, 120787290), (2, 60393645), (3, 40262430), (5, 24157458), (6, 20131215), (9, 13420810), (10, 12078729), (13, 9291330), (15, 8052486), (18, 6710405), (26, 4645665), (30, 4026243), (39, 3097110), (45, 2684162), (65, 1858266), (78, 1548555), (90, 1342081), (117, 1032370), (130, 929133), (195, 619422), (234, 516185), (390, 309711), (585, 206474), (1170, 103237)]

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