390708080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{697693}}^1$

素因数の和:697713

約数の個数: 40

約数和(自身を含む): 1038168672

約数和(自身を除く): 647460592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 697693, 1395386, 2790772, 3488465, 4883851, 5581544, 6976930, 9767702, 11163088, 13953860, 19535404, 24419255, 27907720, 39070808, 48838510, 55815440, 78141616, 97677020, 195354040, 390708080]

約数ペア:

[(1, 390708080), (2, 195354040), (4, 97677020), (5, 78141616), (7, 55815440), (8, 48838510), (10, 39070808), (14, 27907720), (16, 24419255), (20, 19535404), (28, 13953860), (35, 11163088), (40, 9767702), (56, 6976930), (70, 5581544), (80, 4883851), (112, 3488465), (140, 2790772), (280, 1395386), (560, 697693)]