388179956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 737721600

約数和(自身を除く): 349541644

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 109, 188, 218, 436, 893, 997, 1786, 1994, 2071, 3572, 3988, 4142, 5123, 8284, 10246, 18943, 20492, 37886, 46859, 75772, 93718, 97337, 108673, 187436, 194674, 217346, 389348, 434692, 890321, 1780642, 2064787, 3561284, 4129574, 5107631, 8259148, 10215262, 20430524, 97044989, 194089978, 388179956]

約数ペア:

[(1, 388179956), (2, 194089978), (4, 97044989), (19, 20430524), (38, 10215262), (47, 8259148), (76, 5107631), (94, 4129574), (109, 3561284), (188, 2064787), (218, 1780642), (436, 890321), (893, 434692), (997, 389348), (1786, 217346), (1994, 194674), (2071, 187436), (3572, 108673), (3988, 97337), (4142, 93718), (5123, 75772), (8284, 46859), (10246, 37886), (18943, 20492)]