161941640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{578363}}^1$

素因数の和:578381

約数の個数: 32

約数和(自身を含む): 416422080

約数和(自身を除く): 254480440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 578363, 1156726, 2313452, 2891815, 4048541, 4626904, 5783630, 8097082, 11567260, 16194164, 20242705, 23134520, 32388328, 40485410, 80970820, 161941640]

約数ペア:

[(1, 161941640), (2, 80970820), (4, 40485410), (5, 32388328), (7, 23134520), (8, 20242705), (10, 16194164), (14, 11567260), (20, 8097082), (28, 5783630), (35, 4626904), (40, 4048541), (56, 2891815), (70, 2313452), (140, 1156726), (280, 578363)]