807168940

素因数分解:

$2^2\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{20149}}^1$

素因数の和:22161

約数の個数: 24

約数和(自身を含む): 1695985200

約数和(自身を除く): 888816260

約数列:

[1, 2, 4, 5, 10, 20, 2003, 4006, 8012, 10015, 20030, 20149, 40060, 40298, 80596, 100745, 201490, 402980, 40358447, 80716894, 161433788, 201792235, 403584470, 807168940]

約数ペア:

[(1, 807168940), (2, 403584470), (4, 201792235), (5, 161433788), (10, 80716894), (20, 40358447), (2003, 402980), (4006, 201490), (8012, 100745), (10015, 80596), (20030, 40298), (20149, 40060)]