55460840

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2143}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 125038080

約数和(自身を除く): 69577240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2143, 2588, 3235, 4286, 5176, 6470, 8572, 10715, 12940, 17144, 21430, 25880, 42860, 85720, 1386521, 2773042, 5546084, 6932605, 11092168, 13865210, 27730420, 55460840]

約数ペア:

[(1, 55460840), (2, 27730420), (4, 13865210), (5, 11092168), (8, 6932605), (10, 5546084), (20, 2773042), (40, 1386521), (647, 85720), (1294, 42860), (2143, 25880), (2588, 21430), (3235, 17144), (4286, 12940), (5176, 10715), (6470, 8572)]