71991940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211741}}^1$

素因数の和:211767

約数の個数: 24

約数和(自身を含む): 160076952

約数和(自身を除く): 88085012

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 211741, 423482, 846964, 1058705, 2117410, 3599597, 4234820, 7199194, 14398388, 17997985, 35995970, 71991940]

約数ペア:

[(1, 71991940), (2, 35995970), (4, 17997985), (5, 14398388), (10, 7199194), (17, 4234820), (20, 3599597), (34, 2117410), (68, 1058705), (85, 846964), (170, 423482), (340, 211741)]