201996400

素因数分解:

$2^4\times 5^2\times {\mathrm{504991}}^1$

素因数の和:505009

約数の個数: 30

約数和(自身を含む): 485297312

約数和(自身を除く): 283300912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 504991, 1009982, 2019964, 2524955, 4039928, 5049910, 8079856, 10099820, 12624775, 20199640, 25249550, 40399280, 50499100, 100998200, 201996400]

約数ペア:

[(1, 201996400), (2, 100998200), (4, 50499100), (5, 40399280), (8, 25249550), (10, 20199640), (16, 12624775), (20, 10099820), (25, 8079856), (40, 5049910), (50, 4039928), (80, 2524955), (100, 2019964), (200, 1009982), (400, 504991)]