399900285

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{306437}}^1$

素因数の和:306477

約数の個数: 24

約数和(自身を含む): 717064920

約数和(自身を除く): 317164635

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 306437, 919311, 1532185, 2757933, 4596555, 8886673, 13789665, 26660019, 44433365, 79980057, 133300095, 399900285]

約数ペア:

[(1, 399900285), (3, 133300095), (5, 79980057), (9, 44433365), (15, 26660019), (29, 13789665), (45, 8886673), (87, 4596555), (145, 2757933), (261, 1532185), (435, 919311), (1305, 306437)]