About the Number

201312790

201312789 ← → 201312791

2進数表記:1011111111111100101000010110

漢数字表記:二億百三十一万二千七百九十

素因数分解:

2 1 × 5 1 × 7 1 × 19 1 × 23 1 × 6581 1

素因数の和:6637
約数の個数: 64
約数和(自身を含む): 454947840
約数和(自身を除く): 253635050

約数列:
[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 665, 805, 874, 1330, 1610, 2185, 3059, 4370, 6118, 6581, 13162, 15295, 30590, 32905, 46067, 65810, 92134, 125039, 151363, 230335, 250078, 302726, 460670, 625195, 756815, 875273, 1059541, 1250390, 1513630, 1750546, 2119082, 2875897, 4376365, 5297705, 5751794, 8752730, 10595410, 14379485, 20131279, 28758970, 40262558, 100656395, 201312790]

約数ペア:
[(1, 201312790), (2, 100656395), (5, 40262558), (7, 28758970), (10, 20131279), (14, 14379485), (19, 10595410), (23, 8752730), (35, 5751794), (38, 5297705), (46, 4376365), (70, 2875897), (95, 2119082), (115, 1750546), (133, 1513630), (161, 1250390), (190, 1059541), (230, 875273), (266, 756815), (322, 625195), (437, 460670), (665, 302726), (805, 250078), (874, 230335), (1330, 151363), (1610, 125039), (2185, 92134), (3059, 65810), (4370, 46067), (6118, 32905), (6581, 30590), (13162, 15295)]

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