12890920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6577}}^1$

素因数の和:6602

約数の個数: 48

約数和(自身を含む): 33745140

約数和(自身を除く): 20854220

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6577, 13154, 26308, 32885, 46039, 52616, 65770, 92078, 131540, 184156, 230195, 263080, 322273, 368312, 460390, 644546, 920780, 1289092, 1611365, 1841560, 2578184, 3222730, 6445460, 12890920]

約数ペア:

[(1, 12890920), (2, 6445460), (4, 3222730), (5, 2578184), (7, 1841560), (8, 1611365), (10, 1289092), (14, 920780), (20, 644546), (28, 460390), (35, 368312), (40, 322273), (49, 263080), (56, 230195), (70, 184156), (98, 131540), (140, 92078), (196, 65770), (245, 52616), (280, 46039), (392, 32885), (490, 26308), (980, 13154), (1960, 6577)]