18084920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9227}}^1$

素因数の和:9252

約数の個数: 48

約数和(自身を含む): 47339640

約数和(自身を除く): 29254720

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, 9227, 18454, 36908, 46135, 64589, 73816, 92270, 129178, 184540, 258356, 322945, 369080, 452123, 516712, 645890, 904246, 1291780, 1808492, 2260615, 2583560, 3616984, 4521230, 9042460, 18084920]

約数ペア:

[(1, 18084920), (2, 9042460), (4, 4521230), (5, 3616984), (7, 2583560), (8, 2260615), (10, 1808492), (14, 1291780), (20, 904246), (28, 645890), (35, 516712), (40, 452123), (49, 369080), (56, 322945), (70, 258356), (98, 184540), (140, 129178), (196, 92270), (245, 73816), (280, 64589), (392, 46135), (490, 36908), (980, 18454), (1960, 9227)]