20075020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7547}}^1$

素因数の和:7582

約数の個数: 48

約数和(自身を含む): 50722560

約数和(自身を除く): 30647540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7547, 15094, 30188, 37735, 52829, 75470, 105658, 143393, 150940, 211316, 264145, 286786, 528290, 573572, 716965, 1003751, 1056580, 1433930, 2007502, 2867860, 4015004, 5018755, 10037510, 20075020]

約数ペア:

[(1, 20075020), (2, 10037510), (4, 5018755), (5, 4015004), (7, 2867860), (10, 2007502), (14, 1433930), (19, 1056580), (20, 1003751), (28, 716965), (35, 573572), (38, 528290), (70, 286786), (76, 264145), (95, 211316), (133, 150940), (140, 143393), (190, 105658), (266, 75470), (380, 52829), (532, 37735), (665, 30188), (1330, 15094), (2660, 7547)]