257832386

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{8081}}^1$

素因数の和:8186

約数の個数: 32

約数和(自身を含む): 460867968

約数和(自身を除く): 203035582

約数列:

[1, 2, 7, 14, 43, 53, 86, 106, 301, 371, 602, 742, 2279, 4558, 8081, 15953, 16162, 31906, 56567, 113134, 347483, 428293, 694966, 856586, 2432381, 2998051, 4864762, 5996102, 18416599, 36833198, 128916193, 257832386]

約数ペア:

[(1, 257832386), (2, 128916193), (7, 36833198), (14, 18416599), (43, 5996102), (53, 4864762), (86, 2998051), (106, 2432381), (301, 856586), (371, 694966), (602, 428293), (742, 347483), (2279, 113134), (4558, 56567), (8081, 31906), (15953, 16162)]