20282000

素因数分解:

$2^4\times 5^3\times {\mathrm{10141}}^1$

素因数の和:10164

約数の個数: 40

約数和(自身を含む): 49046712

約数和(自身を除く): 28764712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10141, 20282, 40564, 50705, 81128, 101410, 162256, 202820, 253525, 405640, 507050, 811280, 1014100, 1267625, 2028200, 2535250, 4056400, 5070500, 10141000, 20282000]

約数ペア:

[(1, 20282000), (2, 10141000), (4, 5070500), (5, 4056400), (8, 2535250), (10, 2028200), (16, 1267625), (20, 1014100), (25, 811280), (40, 507050), (50, 405640), (80, 253525), (100, 202820), (125, 162256), (200, 101410), (250, 81128), (400, 50705), (500, 40564), (1000, 20282), (2000, 10141)]