641309.0000000

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 10285800

約数和(自身を除く): 4577908

約数列:

[1, 2, 4, 61, 122, 149, 157, 244, 298, 314, 596, 628, 9089, 9577, 18178, 19154, 23393, 36356, 38308, 46786, 93572, 1426973, 2853946, 5707892]

約数ペア:

[(1, 5707892), (2, 2853946), (4, 1426973), (61, 93572), (122, 46786), (149, 38308), (157, 36356), (244, 23393), (298, 19154), (314, 18178), (596, 9577), (628, 9089)]