400215808

素因数分解:

$2^8\times {\mathrm{337}}^1\times {\mathrm{4639}}^1$

素因数の和:4992

約数の個数: 36

約数和(自身を含む): 801411520

約数和(自身を除く): 401195712

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 337, 674, 1348, 2696, 4639, 5392, 9278, 10784, 18556, 21568, 37112, 43136, 74224, 86272, 148448, 296896, 593792, 1187584, 1563343, 3126686, 6253372, 12506744, 25013488, 50026976, 100053952, 200107904, 400215808]

約数ペア:

[(1, 400215808), (2, 200107904), (4, 100053952), (8, 50026976), (16, 25013488), (32, 12506744), (64, 6253372), (128, 3126686), (256, 1563343), (337, 1187584), (674, 593792), (1348, 296896), (2696, 148448), (4639, 86272), (5392, 74224), (9278, 43136), (10784, 37112), (18556, 21568)]