420043880

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{11527}}^1$

素因数の和:12449

約数の個数: 32

約数和(自身を含む): 946218240

約数和(自身を除く): 526174360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3644, 4555, 7288, 9110, 11527, 18220, 23054, 36440, 46108, 57635, 92216, 115270, 230540, 461080, 10501097, 21002194, 42004388, 52505485, 84008776, 105010970, 210021940, 420043880]

約数ペア:

[(1, 420043880), (2, 210021940), (4, 105010970), (5, 84008776), (8, 52505485), (10, 42004388), (20, 21002194), (40, 10501097), (911, 461080), (1822, 230540), (3644, 115270), (4555, 92216), (7288, 57635), (9110, 46108), (11527, 36440), (18220, 23054)]