421905.0000000

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2579}}^1$

素因数の和:2649

約数の個数: 24

約数和(自身を含む): 6718320

約数和(自身を除く): 3571940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 2579, 5158, 10316, 12895, 25790, 51580, 157319, 314638, 629276, 786595, 1573190, 3146380]

約数ペア:

[(1, 3146380), (2, 1573190), (4, 786595), (5, 629276), (10, 314638), (20, 157319), (61, 51580), (122, 25790), (244, 12895), (305, 10316), (610, 5158), (1220, 2579)]