274378160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{489961}}^1$

素因数の和:489981

約数の個数: 40

約数和(自身を含む): 729063456

約数和(自身を除く): 454685296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 489961, 979922, 1959844, 2449805, 3429727, 3919688, 4899610, 6859454, 7839376, 9799220, 13718908, 17148635, 19598440, 27437816, 34297270, 39196880, 54875632, 68594540, 137189080, 274378160]

約数ペア:

[(1, 274378160), (2, 137189080), (4, 68594540), (5, 54875632), (7, 39196880), (8, 34297270), (10, 27437816), (14, 19598440), (16, 17148635), (20, 13718908), (28, 9799220), (35, 7839376), (40, 6859454), (56, 4899610), (70, 3919688), (80, 3429727), (112, 2449805), (140, 1959844), (280, 979922), (560, 489961)]