401044720

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{25447}}^1$

素因数の和:25657

約数の個数: 40

約数和(自身を含む): 937198944

約数和(自身を除く): 536154224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 15760, 25447, 50894, 101788, 127235, 203576, 254470, 407152, 508940, 1017880, 2035760, 5013059, 10026118, 20052236, 25065295, 40104472, 50130590, 80208944, 100261180, 200522360, 401044720]

約数ペア:

[(1, 401044720), (2, 200522360), (4, 100261180), (5, 80208944), (8, 50130590), (10, 40104472), (16, 25065295), (20, 20052236), (40, 10026118), (80, 5013059), (197, 2035760), (394, 1017880), (788, 508940), (985, 407152), (1576, 254470), (1970, 203576), (3152, 127235), (3940, 101788), (7880, 50894), (15760, 25447)]