20455456

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1723}}^1$

素因数の和:1793

約数の個数: 48

約数和(自身を含む): 46920384

約数和(自身を除く): 26464928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 106, 112, 212, 224, 371, 424, 742, 848, 1484, 1696, 1723, 2968, 3446, 5936, 6892, 11872, 12061, 13784, 24122, 27568, 48244, 55136, 91319, 96488, 182638, 192976, 365276, 385952, 639233, 730552, 1278466, 1461104, 2556932, 2922208, 5113864, 10227728, 20455456]

約数ペア:

[(1, 20455456), (2, 10227728), (4, 5113864), (7, 2922208), (8, 2556932), (14, 1461104), (16, 1278466), (28, 730552), (32, 639233), (53, 385952), (56, 365276), (106, 192976), (112, 182638), (212, 96488), (224, 91319), (371, 55136), (424, 48244), (742, 27568), (848, 24122), (1484, 13784), (1696, 12061), (1723, 11872), (2968, 6892), (3446, 5936)]