18976580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1523}}^1$

素因数の和:1628

約数の個数: 48

約数和(自身を含む): 46085760

約数和(自身を除く): 27109180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1523, 1780, 2492, 3046, 3115, 6092, 6230, 7615, 10661, 12460, 15230, 21322, 30460, 42644, 53305, 106610, 135547, 213220, 271094, 542188, 677735, 948829, 1355470, 1897658, 2710940, 3795316, 4744145, 9488290, 18976580]

約数ペア:

[(1, 18976580), (2, 9488290), (4, 4744145), (5, 3795316), (7, 2710940), (10, 1897658), (14, 1355470), (20, 948829), (28, 677735), (35, 542188), (70, 271094), (89, 213220), (140, 135547), (178, 106610), (356, 53305), (445, 42644), (623, 30460), (890, 21322), (1246, 15230), (1523, 12460), (1780, 10661), (2492, 7615), (3046, 6230), (3115, 6092)]