421750640

素因数分解:

$2^4\times 5^1\times {\mathrm{5271883}}^1$

素因数の和:5271896

約数の個数: 20

約数和(自身を含む): 980570424

約数和(自身を除く): 558819784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5271883, 10543766, 21087532, 26359415, 42175064, 52718830, 84350128, 105437660, 210875320, 421750640]

約数ペア:

[(1, 421750640), (2, 210875320), (4, 105437660), (5, 84350128), (8, 52718830), (10, 42175064), (16, 26359415), (20, 21087532), (40, 10543766), (80, 5271883)]