391711480

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{146161}}^1$

素因数の和:146239

約数の個数: 32

約数和(自身を含む): 894511440

約数和(自身を除く): 502799960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 146161, 292322, 584644, 730805, 1169288, 1461610, 2923220, 5846440, 9792787, 19585574, 39171148, 48963935, 78342296, 97927870, 195855740, 391711480]

約数ペア:

[(1, 391711480), (2, 195855740), (4, 97927870), (5, 78342296), (8, 48963935), (10, 39171148), (20, 19585574), (40, 9792787), (67, 5846440), (134, 2923220), (268, 1461610), (335, 1169288), (536, 730805), (670, 584644), (1340, 292322), (2680, 146161)]