156784180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12583}}^1$

素因数の和:12688

約数の個数: 48

約数和(自身を含む): 380540160

約数和(自身を除く): 223755980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 12583, 25166, 50332, 62915, 88081, 125830, 176162, 251660, 352324, 440405, 880810, 1119887, 1761620, 2239774, 4479548, 5599435, 7839209, 11198870, 15678418, 22397740, 31356836, 39196045, 78392090, 156784180]

約数ペア:

[(1, 156784180), (2, 78392090), (4, 39196045), (5, 31356836), (7, 22397740), (10, 15678418), (14, 11198870), (20, 7839209), (28, 5599435), (35, 4479548), (70, 2239774), (89, 1761620), (140, 1119887), (178, 880810), (356, 440405), (445, 352324), (623, 251660), (890, 176162), (1246, 125830), (1780, 88081), (2492, 62915), (3115, 50332), (6230, 25166), (12460, 12583)]