257136506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{3733}}^1$

素因数の和:3878

約数の個数: 32

約数和(自身を含む): 438759936

約数和(自身を除く): 181623430

約数列:

[1, 2, 11, 22, 31, 62, 101, 202, 341, 682, 1111, 2222, 3131, 3733, 6262, 7466, 34441, 41063, 68882, 82126, 115723, 231446, 377033, 754066, 1272953, 2545906, 4147363, 8294726, 11688023, 23376046, 128568253, 257136506]

約数ペア:

[(1, 257136506), (2, 128568253), (11, 23376046), (22, 11688023), (31, 8294726), (62, 4147363), (101, 2545906), (202, 1272953), (341, 754066), (682, 377033), (1111, 231446), (2222, 115723), (3131, 82126), (3733, 68882), (6262, 41063), (7466, 34441)]