1639795

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 2126880

約数和(自身を除く): 487085

約数列:

[1, 5, 19, 41, 95, 205, 421, 779, 2105, 3895, 7999, 17261, 39995, 86305, 327959, 1639795]

約数ペア:

[(1, 1639795), (5, 327959), (19, 86305), (41, 39995), (95, 17261), (205, 7999), (421, 3895), (779, 2105)]