71405420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{187909}}^1$

素因数の和:187937

約数の個数: 24

約数和(自身を含む): 157844400

約数和(自身を除く): 86438980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 187909, 375818, 751636, 939545, 1879090, 3570271, 3758180, 7140542, 14281084, 17851355, 35702710, 71405420]

約数ペア:

[(1, 71405420), (2, 35702710), (4, 17851355), (5, 14281084), (10, 7140542), (19, 3758180), (20, 3570271), (38, 1879090), (76, 939545), (95, 751636), (190, 375818), (380, 187909)]