156978978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{64921}}^1$

素因数の和:64970

約数の個数: 32

約数和(自身を含む): 349020672

約数和(自身を除く): 192041694

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 64921, 129842, 194763, 389526, 843973, 1687946, 2012551, 2531919, 4025102, 5063838, 6037653, 12075306, 26163163, 52326326, 78489489, 156978978]

約数ペア:

[(1, 156978978), (2, 78489489), (3, 52326326), (6, 26163163), (13, 12075306), (26, 6037653), (31, 5063838), (39, 4025102), (62, 2531919), (78, 2012551), (93, 1687946), (186, 843973), (403, 389526), (806, 194763), (1209, 129842), (2418, 64921)]