64970780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1193}}^1$

素因数の和:1598

約数の個数: 48

約数和(自身を含む): 156461760

約数和(自身を除く): 91490980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1193, 1556, 1945, 2386, 2723, 3890, 4772, 5446, 5965, 7780, 8351, 10892, 11930, 13615, 16702, 23860, 27230, 33404, 41755, 54460, 83510, 167020, 464077, 928154, 1856308, 2320385, 3248539, 4640770, 6497078, 9281540, 12994156, 16242695, 32485390, 64970780]

約数ペア:

[(1, 64970780), (2, 32485390), (4, 16242695), (5, 12994156), (7, 9281540), (10, 6497078), (14, 4640770), (20, 3248539), (28, 2320385), (35, 1856308), (70, 928154), (140, 464077), (389, 167020), (778, 83510), (1193, 54460), (1556, 41755), (1945, 33404), (2386, 27230), (2723, 23860), (3890, 16702), (4772, 13615), (5446, 11930), (5965, 10892), (7780, 8351)]