About the Number

12990816

12990815 ← → 12990817

2進数表記:110001100011100101100000

漢数字表記:千二百九十九万八百十六

素因数分解:

2 5 × 3 2 × 43 1 × 1049 1

素因数の和:1108
約数の個数: 72
約数和(自身を含む): 37837800
約数和(自身を除く): 24846984

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 43, 48, 72, 86, 96, 129, 144, 172, 258, 288, 344, 387, 516, 688, 774, 1032, 1049, 1376, 1548, 2064, 2098, 3096, 3147, 4128, 4196, 6192, 6294, 8392, 9441, 12384, 12588, 16784, 18882, 25176, 33568, 37764, 45107, 50352, 75528, 90214, 100704, 135321, 151056, 180428, 270642, 302112, 360856, 405963, 541284, 721712, 811926, 1082568, 1443424, 1623852, 2165136, 3247704, 4330272, 6495408, 12990816]

約数ペア:
[(1, 12990816), (2, 6495408), (3, 4330272), (4, 3247704), (6, 2165136), (8, 1623852), (9, 1443424), (12, 1082568), (16, 811926), (18, 721712), (24, 541284), (32, 405963), (36, 360856), (43, 302112), (48, 270642), (72, 180428), (86, 151056), (96, 135321), (129, 100704), (144, 90214), (172, 75528), (258, 50352), (288, 45107), (344, 37764), (387, 33568), (516, 25176), (688, 18882), (774, 16784), (1032, 12588), (1049, 12384), (1376, 9441), (1548, 8392), (2064, 6294), (2098, 6192), (3096, 4196), (3147, 4128)]

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