20282800

素因数分解:

$2^4\times 5^2\times {\mathrm{50707}}^1$

素因数の和:50725

約数の個数: 30

約数和(自身を含む): 48730388

約数和(自身を除く): 28447588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50707, 101414, 202828, 253535, 405656, 507070, 811312, 1014140, 1267675, 2028280, 2535350, 4056560, 5070700, 10141400, 20282800]

約数ペア:

[(1, 20282800), (2, 10141400), (4, 5070700), (5, 4056560), (8, 2535350), (10, 2028280), (16, 1267675), (20, 1014140), (25, 811312), (40, 507070), (50, 405656), (80, 253535), (100, 202828), (200, 101414), (400, 50707)]