291216290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{20639}}^1$

素因数の和:20746

約数の個数: 32

約数和(自身を含む): 561738240

約数和(自身を除く): 270521950

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 415, 830, 1411, 2822, 7055, 14110, 20639, 41278, 103195, 206390, 350863, 701726, 1713037, 1754315, 3426074, 3508630, 8565185, 17130370, 29121629, 58243258, 145608145, 291216290]

約数ペア:

[(1, 291216290), (2, 145608145), (5, 58243258), (10, 29121629), (17, 17130370), (34, 8565185), (83, 3508630), (85, 3426074), (166, 1754315), (170, 1713037), (415, 701726), (830, 350863), (1411, 206390), (2822, 103195), (7055, 41278), (14110, 20639)]