847130920

素因数分解:

$2^3\times 5^1\times {\mathrm{21178273}}^1$

素因数の和:21178284

約数の個数: 16

約数和(自身を含む): 1906044660

約数和(自身を除く): 1058913740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21178273, 42356546, 84713092, 105891365, 169426184, 211782730, 423565460, 847130920]

約数ペア:

[(1, 847130920), (2, 423565460), (4, 211782730), (5, 169426184), (8, 105891365), (10, 84713092), (20, 42356546), (40, 21178273)]