20294708

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 42491904

約数和(自身を除く): 22197196

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 103, 124, 206, 217, 227, 412, 434, 454, 721, 868, 908, 1442, 1589, 2884, 3178, 3193, 6356, 6386, 7037, 12772, 14074, 22351, 23381, 28148, 44702, 46762, 49259, 89404, 93524, 98518, 163667, 197036, 327334, 654668, 724811, 1449622, 2899244, 5073677, 10147354, 20294708]

約数ペア:

[(1, 20294708), (2, 10147354), (4, 5073677), (7, 2899244), (14, 1449622), (28, 724811), (31, 654668), (62, 327334), (103, 197036), (124, 163667), (206, 98518), (217, 93524), (227, 89404), (412, 49259), (434, 46762), (454, 44702), (721, 28148), (868, 23381), (908, 22351), (1442, 14074), (1589, 12772), (2884, 7037), (3178, 6386), (3193, 6356)]