16845020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 37702560

約数和(自身を除く): 20857540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 457, 485, 914, 970, 1828, 1843, 1940, 2285, 3686, 4570, 7372, 8683, 9140, 9215, 17366, 18430, 34732, 36860, 43415, 44329, 86830, 88658, 173660, 177316, 221645, 443290, 842251, 886580, 1684502, 3369004, 4211255, 8422510, 16845020]

約数ペア:

[(1, 16845020), (2, 8422510), (4, 4211255), (5, 3369004), (10, 1684502), (19, 886580), (20, 842251), (38, 443290), (76, 221645), (95, 177316), (97, 173660), (190, 88658), (194, 86830), (380, 44329), (388, 43415), (457, 36860), (485, 34732), (914, 18430), (970, 17366), (1828, 9215), (1843, 9140), (1940, 8683), (2285, 7372), (3686, 4570)]