278699386

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1\times {\mathrm{997}}^1$

素因数の和:1534

約数の個数: 32

約数和(自身を含む): 490920192

約数和(自身を除く): 212220806

約数列:

[1, 2, 7, 14, 41, 82, 287, 487, 574, 974, 997, 1994, 3409, 6818, 6979, 13958, 19967, 39934, 40877, 81754, 139769, 279538, 286139, 485539, 572278, 971078, 3398773, 6797546, 19907099, 39814198, 139349693, 278699386]

約数ペア:

[(1, 278699386), (2, 139349693), (7, 39814198), (14, 19907099), (41, 6797546), (82, 3398773), (287, 971078), (487, 572278), (574, 485539), (974, 286139), (997, 279538), (1994, 139769), (3409, 81754), (6818, 40877), (6979, 39934), (13958, 19967)]