About the Number

121020720

121020719 ← → 121020721

2進数表記:111001101101010000100110000

漢数字表記:一億二千百二万七百二十

素因数分解:

2 4 × 3 1 × 5 1 × 293 1 × 1721 1

素因数の和:2030
約数の個数: 80
約数和(自身を含む): 376663392
約数和(自身を除く): 255642672

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 293, 586, 879, 1172, 1465, 1721, 1758, 2344, 2930, 3442, 3516, 4395, 4688, 5163, 5860, 6884, 7032, 8605, 8790, 10326, 11720, 13768, 14064, 17210, 17580, 20652, 23440, 25815, 27536, 34420, 35160, 41304, 51630, 68840, 70320, 82608, 103260, 137680, 206520, 413040, 504253, 1008506, 1512759, 2017012, 2521265, 3025518, 4034024, 5042530, 6051036, 7563795, 8068048, 10085060, 12102072, 15127590, 20170120, 24204144, 30255180, 40340240, 60510360, 121020720]

約数ペア:
[(1, 121020720), (2, 60510360), (3, 40340240), (4, 30255180), (5, 24204144), (6, 20170120), (8, 15127590), (10, 12102072), (12, 10085060), (15, 8068048), (16, 7563795), (20, 6051036), (24, 5042530), (30, 4034024), (40, 3025518), (48, 2521265), (60, 2017012), (80, 1512759), (120, 1008506), (240, 504253), (293, 413040), (586, 206520), (879, 137680), (1172, 103260), (1465, 82608), (1721, 70320), (1758, 68840), (2344, 51630), (2930, 41304), (3442, 35160), (3516, 34420), (4395, 27536), (4688, 25815), (5163, 23440), (5860, 20652), (6884, 17580), (7032, 17210), (8605, 14064), (8790, 13768), (10326, 11720)]

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