204712420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{1759}}^1$

素因数の和:1825

約数の個数: 72

約数和(自身を含む): 490533120

約数和(自身を除く): 285820700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 529, 1012, 1058, 1265, 1759, 2116, 2530, 2645, 3518, 5060, 5290, 5819, 7036, 8795, 10580, 11638, 17590, 19349, 23276, 29095, 35180, 38698, 40457, 58190, 77396, 80914, 96745, 116380, 161828, 193490, 202285, 386980, 404570, 445027, 809140, 890054, 930511, 1780108, 1861022, 2225135, 3722044, 4450270, 4652555, 8900540, 9305110, 10235621, 18610220, 20471242, 40942484, 51178105, 102356210, 204712420]

約数ペア:

[(1, 204712420), (2, 102356210), (4, 51178105), (5, 40942484), (10, 20471242), (11, 18610220), (20, 10235621), (22, 9305110), (23, 8900540), (44, 4652555), (46, 4450270), (55, 3722044), (92, 2225135), (110, 1861022), (115, 1780108), (220, 930511), (230, 890054), (253, 809140), (460, 445027), (506, 404570), (529, 386980), (1012, 202285), (1058, 193490), (1265, 161828), (1759, 116380), (2116, 96745), (2530, 80914), (2645, 77396), (3518, 58190), (5060, 40457), (5290, 38698), (5819, 35180), (7036, 29095), (8795, 23276), (10580, 19349), (11638, 17590)]