320438287

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{67}}^2$

素因数の和:200

約数の個数: 36

約数和(自身を含む): 391719720

約数和(自身を除く): 71281433

約数列:

[1, 13, 17, 19, 67, 221, 247, 289, 323, 871, 1139, 1273, 3757, 4199, 4489, 5491, 14807, 16549, 19363, 21641, 58357, 71383, 76313, 85291, 251719, 281333, 367897, 992069, 1108783, 1297321, 1449947, 4782661, 16865173, 18849311, 24649099, 320438287]

約数ペア:

[(1, 320438287), (13, 24649099), (17, 18849311), (19, 16865173), (67, 4782661), (221, 1449947), (247, 1297321), (289, 1108783), (323, 992069), (871, 367897), (1139, 281333), (1273, 251719), (3757, 85291), (4199, 76313), (4489, 71383), (5491, 58357), (14807, 21641), (16549, 19363)]