290712926

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{53381}}^1$

素因数の和:53779

約数の個数: 16

約数和(自身を含む): 499655520

約数和(自身を除く): 208942594

約数列:

[1, 2, 7, 14, 389, 778, 2723, 5446, 53381, 106762, 373667, 747334, 20765209, 41530418, 145356463, 290712926]

約数ペア:

[(1, 290712926), (2, 145356463), (7, 41530418), (14, 20765209), (389, 747334), (778, 373667), (2723, 106762), (5446, 53381)]