20389552

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43943}}^1$

素因数の和:43980

約数の個数: 20

約数和(自身を含む): 40867920

約数和(自身を除く): 20478368

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 43943, 87886, 175772, 351544, 703088, 1274347, 2548694, 5097388, 10194776, 20389552]

約数ペア:

[(1, 20389552), (2, 10194776), (4, 5097388), (8, 2548694), (16, 1274347), (29, 703088), (58, 351544), (116, 175772), (232, 87886), (464, 43943)]