81128000

素因数分解:

$2^6\times 5^3\times {\mathrm{10141}}^1$

素因数の和:10168

約数の個数: 56

約数和(自身を含む): 200933304

約数和(自身を除く): 119805304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000, 10141, 20282, 40564, 50705, 81128, 101410, 162256, 202820, 253525, 324512, 405640, 507050, 649024, 811280, 1014100, 1267625, 1622560, 2028200, 2535250, 3245120, 4056400, 5070500, 8112800, 10141000, 16225600, 20282000, 40564000, 81128000]

約数ペア:

[(1, 81128000), (2, 40564000), (4, 20282000), (5, 16225600), (8, 10141000), (10, 8112800), (16, 5070500), (20, 4056400), (25, 3245120), (32, 2535250), (40, 2028200), (50, 1622560), (64, 1267625), (80, 1014100), (100, 811280), (125, 649024), (160, 507050), (200, 405640), (250, 324512), (320, 253525), (400, 202820), (500, 162256), (800, 101410), (1000, 81128), (1600, 50705), (2000, 40564), (4000, 20282), (8000, 10141)]