921790225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{3889}}^1$

素因数の和:4417

約数の個数: 24

約数和(自身を含む): 1205900000

約数和(自身を除く): 284109775

約数列:

[1, 5, 19, 25, 95, 475, 499, 2495, 3889, 9481, 12475, 19445, 47405, 73891, 97225, 237025, 369455, 1847275, 1940611, 9703055, 36871609, 48515275, 184358045, 921790225]

約数ペア:

[(1, 921790225), (5, 184358045), (19, 48515275), (25, 36871609), (95, 9703055), (475, 1940611), (499, 1847275), (2495, 369455), (3889, 237025), (9481, 97225), (12475, 73891), (19445, 47405)]