620288975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 826420320

約数和(自身を除く): 206131345

約数列:

[1, 5, 25, 29, 43, 101, 145, 197, 215, 505, 725, 985, 1075, 1247, 2525, 2929, 4343, 4925, 5713, 6235, 8471, 14645, 19897, 21715, 28565, 31175, 42355, 73225, 99485, 108575, 125947, 142825, 211775, 245659, 497425, 577013, 629735, 855571, 1228295, 2885065, 3148675, 4277855, 6141475, 14425325, 21389275, 24811559, 124057795, 620288975]

約数ペア:

[(1, 620288975), (5, 124057795), (25, 24811559), (29, 21389275), (43, 14425325), (101, 6141475), (145, 4277855), (197, 3148675), (215, 2885065), (505, 1228295), (725, 855571), (985, 629735), (1075, 577013), (1247, 497425), (2525, 245659), (2929, 211775), (4343, 142825), (4925, 125947), (5713, 108575), (6235, 99485), (8471, 73225), (14645, 42355), (19897, 31175), (21715, 28565)]