394803440

素因数分解:

$2^4\times 5^1\times {\mathrm{4935043}}^1$

素因数の和:4935056

約数の個数: 20

約数和(自身を含む): 917918184

約数和(自身を除く): 523114744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4935043, 9870086, 19740172, 24675215, 39480344, 49350430, 78960688, 98700860, 197401720, 394803440]

約数ペア:

[(1, 394803440), (2, 197401720), (4, 98700860), (5, 78960688), (8, 49350430), (10, 39480344), (16, 24675215), (20, 19740172), (40, 9870086), (80, 4935043)]