13990000

素因数分解:

$2^4\times 5^4\times {\mathrm{1399}}^1$

素因数の和:1427

約数の個数: 50

約数和(自身を含む): 33895400

約数和(自身を除く): 19905400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1399, 2000, 2500, 2798, 5000, 5596, 6995, 10000, 11192, 13990, 22384, 27980, 34975, 55960, 69950, 111920, 139900, 174875, 279800, 349750, 559600, 699500, 874375, 1399000, 1748750, 2798000, 3497500, 6995000, 13990000]

約数ペア:

[(1, 13990000), (2, 6995000), (4, 3497500), (5, 2798000), (8, 1748750), (10, 1399000), (16, 874375), (20, 699500), (25, 559600), (40, 349750), (50, 279800), (80, 174875), (100, 139900), (125, 111920), (200, 69950), (250, 55960), (400, 34975), (500, 27980), (625, 22384), (1000, 13990), (1250, 11192), (1399, 10000), (2000, 6995), (2500, 5596), (2798, 5000)]