27440980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{28001}}^1$

素因数の和:28024

約数の個数: 36

約数和(自身を含む): 67036788

約数和(自身を除く): 39595808

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 28001, 56002, 112004, 140005, 196007, 280010, 392014, 560020, 784028, 980035, 1372049, 1960070, 2744098, 3920140, 5488196, 6860245, 13720490, 27440980]

約数ペア:

[(1, 27440980), (2, 13720490), (4, 6860245), (5, 5488196), (7, 3920140), (10, 2744098), (14, 1960070), (20, 1372049), (28, 980035), (35, 784028), (49, 560020), (70, 392014), (98, 280010), (140, 196007), (196, 140005), (245, 112004), (490, 56002), (980, 28001)]