164500400

素因数分解:

$2^4\times 5^2\times {\mathrm{411251}}^1$

素因数の和:411269

約数の個数: 30

約数和(自身を含む): 395213172

約数和(自身を除く): 230712772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 411251, 822502, 1645004, 2056255, 3290008, 4112510, 6580016, 8225020, 10281275, 16450040, 20562550, 32900080, 41125100, 82250200, 164500400]

約数ペア:

[(1, 164500400), (2, 82250200), (4, 41125100), (5, 32900080), (8, 20562550), (10, 16450040), (16, 10281275), (20, 8225020), (25, 6580016), (40, 4112510), (50, 3290008), (80, 2056255), (100, 1645004), (200, 822502), (400, 411251)]