726454820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{399151}}^1$

素因数の和:399180

約数の個数: 48

約数和(自身を含む): 1877611008

約数和(自身を除く): 1151156188

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, 399151, 798302, 1596604, 1995755, 2794057, 3991510, 5188963, 5588114, 7983020, 10377926, 11176228, 13970285, 20755852, 25944815, 27940570, 36322741, 51889630, 55881140, 72645482, 103779260, 145290964, 181613705, 363227410, 726454820]

約数ペア:

[(1, 726454820), (2, 363227410), (4, 181613705), (5, 145290964), (7, 103779260), (10, 72645482), (13, 55881140), (14, 51889630), (20, 36322741), (26, 27940570), (28, 25944815), (35, 20755852), (52, 13970285), (65, 11176228), (70, 10377926), (91, 7983020), (130, 5588114), (140, 5188963), (182, 3991510), (260, 2794057), (364, 1995755), (455, 1596604), (910, 798302), (1820, 399151)]