203780005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{285007}}^1$

素因数の和:285036

約数の個数: 16

約数和(自身を含む): 287288064

約数和(自身を除く): 83508059

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 285007, 1425035, 3135077, 3705091, 15675385, 18525455, 40756001, 203780005]

約数ペア:

[(1, 203780005), (5, 40756001), (11, 18525455), (13, 15675385), (55, 3705091), (65, 3135077), (143, 1425035), (715, 285007)]