51898480

素因数分解:

$2^4\times 5^1\times {\mathrm{648731}}^1$

素因数の和:648744

約数の個数: 20

約数和(自身を含む): 120664152

約数和(自身を除く): 68765672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648731, 1297462, 2594924, 3243655, 5189848, 6487310, 10379696, 12974620, 25949240, 51898480]

約数ペア:

[(1, 51898480), (2, 25949240), (4, 12974620), (5, 10379696), (8, 6487310), (10, 5189848), (16, 3243655), (20, 2594924), (40, 1297462), (80, 648731)]