About the Number

2013122980

2013122979 ← → 2013122981

2進数表記:1110111111111011101000110100100

漢数字表記:二十億千三百十二万二千九百八十

素因数分解:

2 2 × 5 1 × 11 2 × 263 1 × 3163 1

素因数の和:3457
約数の個数: 72
約数和(自身を含む): 4665963456
約数和(自身を除く): 2652840476

約数列:
[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 263, 484, 526, 605, 1052, 1210, 1315, 2420, 2630, 2893, 3163, 5260, 5786, 6326, 11572, 12652, 14465, 15815, 28930, 31630, 31823, 34793, 57860, 63260, 63646, 69586, 127292, 139172, 159115, 173965, 318230, 347930, 382723, 636460, 695860, 765446, 831869, 1530892, 1663738, 1913615, 3327476, 3827230, 4159345, 7654460, 8318690, 9150559, 16637380, 18301118, 36602236, 45752795, 91505590, 100656149, 183011180, 201312298, 402624596, 503280745, 1006561490, 2013122980]

約数ペア:
[(1, 2013122980), (2, 1006561490), (4, 503280745), (5, 402624596), (10, 201312298), (11, 183011180), (20, 100656149), (22, 91505590), (44, 45752795), (55, 36602236), (110, 18301118), (121, 16637380), (220, 9150559), (242, 8318690), (263, 7654460), (484, 4159345), (526, 3827230), (605, 3327476), (1052, 1913615), (1210, 1663738), (1315, 1530892), (2420, 831869), (2630, 765446), (2893, 695860), (3163, 636460), (5260, 382723), (5786, 347930), (6326, 318230), (11572, 173965), (12652, 159115), (14465, 139172), (15815, 127292), (28930, 69586), (31630, 63646), (31823, 63260), (34793, 57860)]

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