139990040

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{34651}}^1$

素因数の和:34763

約数の個数: 32

約数和(自身を含む): 318105360

約数和(自身を除く): 178115320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 34651, 69302, 138604, 173255, 277208, 346510, 693020, 1386040, 3499751, 6999502, 13999004, 17498755, 27998008, 34997510, 69995020, 139990040]

約数ペア:

[(1, 139990040), (2, 69995020), (4, 34997510), (5, 27998008), (8, 17498755), (10, 13999004), (20, 6999502), (40, 3499751), (101, 1386040), (202, 693020), (404, 346510), (505, 277208), (808, 173255), (1010, 138604), (2020, 69302), (4040, 34651)]