257004632

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{19553}}^1$

素因数の和:19643

約数の個数: 32

約数和(自身を含む): 506839680

約数和(自身を除く): 249835048

約数列:

[1, 2, 4, 8, 31, 53, 62, 106, 124, 212, 248, 424, 1643, 3286, 6572, 13144, 19553, 39106, 78212, 156424, 606143, 1036309, 1212286, 2072618, 2424572, 4145236, 4849144, 8290472, 32125579, 64251158, 128502316, 257004632]

約数ペア:

[(1, 257004632), (2, 128502316), (4, 64251158), (8, 32125579), (31, 8290472), (53, 4849144), (62, 4145236), (106, 2424572), (124, 2072618), (212, 1212286), (248, 1036309), (424, 606143), (1643, 156424), (3286, 78212), (6572, 39106), (13144, 19553)]