8128240

素因数分解:

$2^4\times 5^1\times {\mathrm{101603}}^1$

素因数の和:101616

約数の個数: 20

約数和(自身を含む): 18898344

約数和(自身を除く): 10770104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101603, 203206, 406412, 508015, 812824, 1016030, 1625648, 2032060, 4064120, 8128240]

約数ペア:

[(1, 8128240), (2, 4064120), (4, 2032060), (5, 1625648), (8, 1016030), (10, 812824), (16, 508015), (20, 406412), (40, 203206), (80, 101603)]