28641340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15737}}^1$

素因数の和:15766

約数の個数: 48

約数和(自身を含む): 74031552

約数和(自身を除く): 45390212

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15737, 31474, 62948, 78685, 110159, 157370, 204581, 220318, 314740, 409162, 440636, 550795, 818324, 1022905, 1101590, 1432067, 2045810, 2203180, 2864134, 4091620, 5728268, 7160335, 14320670, 28641340]

約数ペア:

[(1, 28641340), (2, 14320670), (4, 7160335), (5, 5728268), (7, 4091620), (10, 2864134), (13, 2203180), (14, 2045810), (20, 1432067), (26, 1101590), (28, 1022905), (35, 818324), (52, 550795), (65, 440636), (70, 409162), (91, 314740), (130, 220318), (140, 204581), (182, 157370), (260, 110159), (364, 78685), (455, 62948), (910, 31474), (1820, 15737)]