80930920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{289039}}^1$

素因数の和:289057

約数の個数: 32

約数和(自身を含む): 208108800

約数和(自身を除く): 127177880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 289039, 578078, 1156156, 1445195, 2023273, 2312312, 2890390, 4046546, 5780780, 8093092, 10116365, 11561560, 16186184, 20232730, 40465460, 80930920]

約数ペア:

[(1, 80930920), (2, 40465460), (4, 20232730), (5, 16186184), (7, 11561560), (8, 10116365), (10, 8093092), (14, 5780780), (20, 4046546), (28, 2890390), (35, 2312312), (40, 2023273), (56, 1445195), (70, 1156156), (140, 578078), (280, 289039)]