161861840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{289039}}^1$

素因数の和:289059

約数の個数: 40

約数和(自身を含む): 430091520

約数和(自身を除く): 268229680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 289039, 578078, 1156156, 1445195, 2023273, 2312312, 2890390, 4046546, 4624624, 5780780, 8093092, 10116365, 11561560, 16186184, 20232730, 23123120, 32372368, 40465460, 80930920, 161861840]

約数ペア:

[(1, 161861840), (2, 80930920), (4, 40465460), (5, 32372368), (7, 23123120), (8, 20232730), (10, 16186184), (14, 11561560), (16, 10116365), (20, 8093092), (28, 5780780), (35, 4624624), (40, 4046546), (56, 2890390), (70, 2312312), (80, 2023273), (112, 1445195), (140, 1156156), (280, 578078), (560, 289039)]