407785144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{206369}}^1$

素因数の和:206407

約数の個数: 32

約数和(自身を含む): 866754000

約数和(自身を除く): 458968856

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 206369, 412738, 825476, 1650952, 2682797, 3921011, 5365594, 7842022, 10731188, 15684044, 21462376, 31368088, 50973143, 101946286, 203892572, 407785144]

約数ペア:

[(1, 407785144), (2, 203892572), (4, 101946286), (8, 50973143), (13, 31368088), (19, 21462376), (26, 15684044), (38, 10731188), (52, 7842022), (76, 5365594), (104, 3921011), (152, 2682797), (247, 1650952), (494, 825476), (988, 412738), (1976, 206369)]