208012400

素因数分解:

$2^4\times 5^2\times {\mathrm{520031}}^1$

素因数の和:520049

約数の個数: 30

約数和(自身を含む): 499750752

約数和(自身を除く): 291738352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 520031, 1040062, 2080124, 2600155, 4160248, 5200310, 8320496, 10400620, 13000775, 20801240, 26001550, 41602480, 52003100, 104006200, 208012400]

約数ペア:

[(1, 208012400), (2, 104006200), (4, 52003100), (5, 41602480), (8, 26001550), (10, 20801240), (16, 13000775), (20, 10400620), (25, 8320496), (40, 5200310), (50, 4160248), (80, 2600155), (100, 2080124), (200, 1040062), (400, 520031)]