16409840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5003}}^1$

素因数の和:5057

約数の個数: 40

約数和(自身を含む): 39091248

約数和(自身を除く): 22681408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5003, 10006, 20012, 25015, 40024, 50030, 80048, 100060, 200120, 205123, 400240, 410246, 820492, 1025615, 1640984, 2051230, 3281968, 4102460, 8204920, 16409840]

約数ペア:

[(1, 16409840), (2, 8204920), (4, 4102460), (5, 3281968), (8, 2051230), (10, 1640984), (16, 1025615), (20, 820492), (40, 410246), (41, 400240), (80, 205123), (82, 200120), (164, 100060), (205, 80048), (328, 50030), (410, 40024), (656, 25015), (820, 20012), (1640, 10006), (3280, 5003)]